Month: January 2023

Sakashita, Kazuki et al. published their research in Angewandte Chemie, International Edition in 2016 | CAS: 16356-02-8

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Synthetic Route of C6H10O2

Rhodium-Catalyzed Cross-Cyclotrimerization and Dimerization of Allenes with Alkynes was written by Sakashita, Kazuki;Shibata, Yu;Tanaka, Ken. And the article was included in Angewandte Chemie, International Edition in 2016.Synthetic Route of C6H10O2 This article mentions the following:

It has been established that a cationic rhodium(I)/binap complex catalyzed the cross-cyclotrimerization of two mols. of a monosubstituted allene with one mol. of a functionalized alkyne gave 3,6-dialkylidenecyclohex-1-enes. In contrast, the reactions involving di- or trisubstituted allenes and/or unfunctionalized alkynes afforded cross-dimerization products, substituted dendralenes, through β-hydrogen elimination from the corresponding rhodacycles. In the experiment, the researchers used many compounds, for example, 1,4-Dimethoxy-2-butyne (cas: 16356-02-8Synthetic Route of C6H10O2).

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Synthetic Route of C6H10O2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Igarashi, Takuya et al. published their research in ACS Catalysis in 2018 | CAS: 365564-07-4

2-(3,5-Dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 365564-07-4) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Formula: C14H21BO4

Nickel-Catalyzed Reductive Cleavage of Carbon-Oxygen Bonds in Anisole Derivatives Using Diisopropylaminoborane was written by Igarashi, Takuya;Haito, Akira;Chatani, Naoto;Tobisu, Mamoru. And the article was included in ACS Catalysis in 2018.Formula: C14H21BO4 This article mentions the following:

The catalytic removal of a methoxy group on an aromatic ring allows this group to be used as a traceless activating and directing group for aromatic functionalization reactions. Although several catalytic methods for the reductive cleavage of anisole derivatives have been reported, all are applicable only to π-extended aryl ethers, such as naphthyl and biphenyl ethers, while monocyclic aryl ethers cannot be reduced. Herein, we report a nickel-catalyzed reductive cleavage reaction of C-O bonds in aryl ethers using diisopropylaminoborane as the reducing agent. Unlike previously reported methods, this reducing reagent allows effective C-O bond reduction in a much wider range of aryl ether substrates, including monocyclic and heterocyclic ethers bearing various functional groups. In the experiment, the researchers used many compounds, for example, 2-(3,5-Dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 365564-07-4Formula: C14H21BO4).

2-(3,5-Dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (cas: 365564-07-4) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Formula: C14H21BO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Maruyama, Takayuki et al. published their research in Tetrahedron in 2011 | CAS: 66943-05-3

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane

Control of peroxyoxalate chemiluminescence by nitrogen-containing ligand quenching: turning off and on by ligand-metal ion host-guest interactions was written by Maruyama, Takayuki;Fujie, Yasuyuki;Oya, Noriyuki;Hosaka, Eisuke;Kanazawa, Aki;Tanaka, Daisuke;Hattori, Yoshiyuki;Motoyoshiya, Jiro. And the article was included in Tetrahedron in 2011.Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane This article mentions the following:

The control of peroxyoxalate chemiluminescence (PO-CL) by the coordination of nitrogen-containing ligands and metal cations was investigated. Turning the CL off and on was done by PO-CL using 15-monoazacrown-5-tethered anthracene and alkali metal ions. CL quenching and regeneration was also observed in the separated mol. system of 15-monoazacrown-5 and the fluorophores. CL quenching by a number of ligands bearing dipicolylamino groups was evaluated by these PO-CL reactions and found to be closely related to their oxidation potentials, which is dependent on the Weller rate law for electron exchange and this provides strong support for the existence of the CIEEL PO-CL process. When Zn2+ or Cu2+ are added to the PO-CL system quenched by the ligand, N-[2-(2,2′-dipicolylamino)ethyl]aniline, CL was turned on because the electron donating ability of the ligands was modulated. This was controlled by the coordination of the studied metal ions and, therefore, this system results in CL because of host-guest interactions. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Lee, Michael et al. published their research in Tetrahedron in 2013 | CAS: 66943-05-3

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).Formula: C10H21NO4

Synthesis of tris-(azacrown) ethers for carboxylic acid recognition was written by Lee, Michael;Zali-Boeini, Hassan;Li, Feng;Lindoy, Leonard F.;Jolliffe, Katrina A.. And the article was included in Tetrahedron in 2013.Formula: C10H21NO4 This article mentions the following:

The synergistic enhancement of metal ion extraction by azacrown ethers in the presence of carboxylic acids has been attributed to a ligand assembly effect in which these two ligands form a complex, facilitated by proton transfer, prior to complexation of the metal ion. In order to investigate the first steps in this multi-component complexation procedure, six tris-(azacrown) ethers I [n = 1, 2; R = H, Me, Et] were synthesized in high yields and their ability to complex mono- and tri-carboxylic acids was investigated by 1H NMR in methanol-d4. All six compounds bound to benzoic acid with 1:3 host-guest stoichiometry and four of them bound tricarboxylic acids with 1:1 host-guest stoichiometry, providing good support for the proposed first step in the ligand assembly effect. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).Formula: C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ho, Hon Eong et al. published their research in Organic Letters in 2014 | CAS: 16356-02-8

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Electric Literature of C6H10O2

Carboxylic Acid-Catalyzed Highly Efficient and Selective Hydroboration of Alkynes with Pinacolborane was written by Ho, Hon Eong;Asao, Naoki;Yamamoto, Yoshinori;Jin, Tienan. And the article was included in Organic Letters in 2014.Electric Literature of C6H10O2 This article mentions the following:

We have demonstrated for the first time that carboxylic acids are able to catalyze the direct hydroboration of various terminal and internal alkynes with pinacolborane, HB(pin), without using any metal catalysts. For example, PhCCB(pin) reacts with HB(pin) in the presence of 4-Me2NC6H4CO2H giving PhCH:C[B(pin)]2 in 99% yield. This unprecedented catalytic hydroboration exhibits a broad functional groups compatibility, giving the corresponding alkenyl diboronates and monoboronates in good to high yields with exclusive regio- and stereoselectivities. In the experiment, the researchers used many compounds, for example, 1,4-Dimethoxy-2-butyne (cas: 16356-02-8Electric Literature of C6H10O2).

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Electric Literature of C6H10O2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Qiu, Yatao et al. published their research in Organic & Biomolecular Chemistry in 2013 | CAS: 54916-28-8

1-(4-(4-Methoxyphenoxy)phenyl)ethanone (cas: 54916-28-8) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Electric Literature of C15H14O3

2-Carbomethoxy-3-hydroxyquinoxaline-di-N-oxide as a novel ligand for the copper-catalyzed coupling reaction of phenols and aryl halides was written by Qiu, Yatao;Jia, Weijun;Yao, Zhiyi;Wu, Fanhong;Jiang, Sheng. And the article was included in Organic & Biomolecular Chemistry in 2013.Electric Literature of C15H14O3 This article mentions the following:

2-Carbomethoxy-3-hydroxyquinoxaline-di-N-oxide was identified as an efficient novel ligand for the copper-catalyzed coupling of aryl halides with various phenols under mild conditions. The catalytic system shows great functional-group tolerance and excellent reactive selectivity. In the experiment, the researchers used many compounds, for example, 1-(4-(4-Methoxyphenoxy)phenyl)ethanone (cas: 54916-28-8Electric Literature of C15H14O3).

1-(4-(4-Methoxyphenoxy)phenyl)ethanone (cas: 54916-28-8) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Electric Literature of C15H14O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Chen, Xin-bing et al. published their research in Yejing Yu Xianshi in 2003 | CAS: 39969-26-1

1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (cas: 39969-26-1) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Ethyl ether is an excellent solvent for extractions and for a wide variety of chemical reactions. It is also used as a volatile starting fluid for diesel engines and gasoline engines in cold weather. Dimethyl ether is used as a spray propellant and refrigerant. Methyl t-butyl ether (MTBE) is a gasoline additive that boosts the octane number and reduces the amount of nitrogen-oxide pollutants in the exhaust. The ethers of ethylene glycol are used as solvents and plasticizers.HPLC of Formula: 39969-26-1

Synthesis of liquid crystal containing C2 bridge of 1,1-difluoroethane or ethyne group was written by Chen, Xin-bing;An, Zhong-wei. And the article was included in Yejing Yu Xianshi in 2003.HPLC of Formula: 39969-26-1 This article mentions the following:

Liquid crystal containing C2 bridge of 1,1-difluoroethane or ethyne group were synthesized by an improved method with overall yield 26% and 39%, which are very important materials used in TN, STN, TFT liquid crystal composition The structures of the compounds are confirmed by IR, 1H NMR. In the experiment, the researchers used many compounds, for example, 1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (cas: 39969-26-1HPLC of Formula: 39969-26-1).

1-Methoxy-4-((4-propylphenyl)ethynyl)benzene (cas: 39969-26-1) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Ethyl ether is an excellent solvent for extractions and for a wide variety of chemical reactions. It is also used as a volatile starting fluid for diesel engines and gasoline engines in cold weather. Dimethyl ether is used as a spray propellant and refrigerant. Methyl t-butyl ether (MTBE) is a gasoline additive that boosts the octane number and reduces the amount of nitrogen-oxide pollutants in the exhaust. The ethers of ethylene glycol are used as solvents and plasticizers.HPLC of Formula: 39969-26-1

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Oonishi, Yoshihiro et al. published their research in Chemistry – A European Journal in 2014 | CAS: 16356-02-8

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Name: 1,4-Dimethoxy-2-butyne

[Au]/[Pd] Multicatalytic Processes: Direct One-Pot Access to Benzo[c]chromenes and Benzo[b]furans was written by Oonishi, Yoshihiro;Gomez-Suarez, Adrian;Martin, Anthony R.;Makida, Yusuke;Slawin, Alexandra M. Z.;Nolan, Steven P.. And the article was included in Chemistry – A European Journal in 2014.Name: 1,4-Dimethoxy-2-butyne This article mentions the following:

A new synthetic protocol that combines the advantages offered by an ecofriendly solvent-free reaction (green chem. method) and sequential transformations is reported. This strategy offers straightforward access to benzo[c]chromenes and benzo[b]furans from com. available starting materials. This two-step, one-pot strategy consists of an Au-catalyzed hydrophenoxylation process followed by Pd-catalyzed C-H activation or Mizoroki-Heck reactions. The selectivity of the process towards carbon-hydrogen bond (C-H bond) activation or Mizoroki-Heck reaction can be easily tuned. Under optimized conditions bis[1,3-bis[2,6-bis(1-methylethyl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene]-μ-hydroxydi[gold(1+)] tetrafluoroborate(1-) was used as a catalyst in addition to palladium(II) acetate and 1,3-bis[2,6-bis(1-methylethyl)phenyl]-1H-imidazolium chloride. Other palladium compounds included [1,3-bis[2,6-bis(1-methylethyl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene]chloro[(1,2,3-η)-(2E)-3-phenyl-2-propen-1-yl]palladium, bis(acetato-κO)aqua[1,3-bis[2,6-bis(1-methylethyl)phenyl]-1,3-dihydro-2H-imidazol-2-ylidene]palladium. Starting materials included 1,1′-(1,2-ethynediyl)bis[benzene] (diphenylacetylene) derivatives, 4-octyne, 2-chloro-4-fluorophenol (halophenol), 2,6-dimethylphenol and similar compounds Vinyl ether intermediates included 2-[[(1Z)-1,2-diphenylethenyl]oxy]-1,3-dimethylbenzene, [[(1Z)-1-propyl-1-penten-1-yl]oxy]benzene. The title compounds thus formed included [(phenyl)methylene]dibenzo[b,d]pyran derivatives [i.e., benzo[c]chromenes derivatives] and benzofuran derivatives In the experiment, the researchers used many compounds, for example, 1,4-Dimethoxy-2-butyne (cas: 16356-02-8Name: 1,4-Dimethoxy-2-butyne).

1,4-Dimethoxy-2-butyne (cas: 16356-02-8) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Name: 1,4-Dimethoxy-2-butyne

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Haas, Ronja et al. published their research in Journal of the Electrochemical Society in 2021 | CAS: 112-49-2

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Name: 2,5,8,11-Tetraoxadodecane

Understanding transport of atmospheric gases in liquid electrolytes for lithium-air batteries was written by Haas, Ronja;Murat, Michael;Weiss, Manuel;Janek, Juergen;Natan, Amir;Schroeder, Daniel. And the article was included in Journal of the Electrochemical Society in 2021.Name: 2,5,8,11-Tetraoxadodecane This article mentions the following:

In metal-air batteries, carbon dioxide (CO2) and nitrogen (N2) are, apart from oxygen (O2), also present as dissolved species in the liquid electrolyte. These dissolved gases can strongly influence the battery performance, as they affect the discharge mechanism and the stability of the lithium metal anode. Therefore, their solubility and diffusivity are important parameters, that are rarely considered in the development of electrolytes for metal-air batteries. Addnl., the diffusion coefficients are calculated through mol. dynamics simulations. The results agree well with the exptl. data. Furthermore, the influence of solvent parameters, such as surface tension and viscosity, on the solubility and the diffusivity as well as the impact of the addition of LiTFSI as conducting salt are investigated. The reported data will help to assess the impact of dissolved gases on the cell chem. of nonaqueous lithium-air batteries, especially on the solid electrolyte interphase (SEI) at the lithium anode, and to predict diffusivity and gas solubility in other electrolytes. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Name: 2,5,8,11-Tetraoxadodecane).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Name: 2,5,8,11-Tetraoxadodecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Murata, Ryo et al. published their research in Journal of Physical Chemistry B in 2021 | CAS: 112-49-2

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Quality Control of 2,5,8,11-Tetraoxadodecane

Dispersion of Complex Refractive Indices for Intense Vibrational Bands. I. Quantitative Spectra was written by Murata, Ryo;Inoue, Ken-ichi;Wang, Lin;Ye, Shen;Morita, Akihiro. And the article was included in Journal of Physical Chemistry B in 2021.Quality Control of 2,5,8,11-Tetraoxadodecane This article mentions the following:

This paper reviews the dispersion of complex refractive indexes for representative intense vibrational bands of organic liquids in the absolute scale. Conspicuous variations in both real and imaginary refractive indexes over the intense bands are precisely determined as a function of IR wavenumber by attenuated total reflection IR absorption measurement. The accurate spectral data offer an excellent reference to calibrate the absolute IR intensities by various quantum chem. calculations, and thus, critical comparison between the present experiment and computation was reported to clarify the general accuracy of the quantum chem. calculations The precise data of the dispersion will be utilized to clarify their impact on the anal. of vibrational spectroscopy of interfaces in the subsequent paper. In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Quality Control of 2,5,8,11-Tetraoxadodecane).

2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Ether is less polar than esters, alcohols or amines because of the oxygen atom that is unable to participate in hydrogen bonding due to the presence of bulky alkyl groups on both sides of the oxygen atom. But ether is more polar than alkenes. The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom. Complexation of the magnesium atom stabilizes the Grignard reagent and helps to keep it in solution.Quality Control of 2,5,8,11-Tetraoxadodecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem