Month: November 2022

Effect of drying temperature together with light on drying characteristics and bioactive compounds in turmeric slice was written by Komonsing, Nilobon;Khuwijitjaru, Pramote;Nagle, Marcus;Muller, Joachim;Mahayothee, Busarakorn. And the article was included in Journal of Food Engineering in 2022.Name: Bisdemethoxycurcumin The following contents are mentioned in the article:

Turmeric is an important source of curcuminoids. It is widely sold in the form of dried slices and powder for production of coloring agents, spices, traditional medicines, and cosmetics. In this study, turmeric slices were dried at five temperatures (40, 50, 60, 70, and 80°C) under two conditions (without light exposure; noLE and with light exposure; LE) in a laboratory-made hot air dryer. For the LE condition, power and light intensity were 397 ± 29 W m-2 and 541 x 102 ± 42 x 102 lx, resp. The Midilli and Kucuk model is the best for predicting drying characteristics of turmeric slices. Effective moisture diffusivities (Deff) and the drying rate constants (k) increased with the drying temperature and the light exposure. Light exposure and temperature did not significantly affect the color values of turmeric powder (p > 0.05). The three curcuminoids from fresh turmeric identified by HPLC were curcumin (17.88 ± 1.60 mg g-1 dry matter), demethoxycurcumin (12.34 ± 0.87 mg g-1 dry matter), and bisdemethoxycurcumin (19.84 ± 1.82 mg g-1 dry matter). The percentage changes of these curcuminoids after drying under noLE were higher at all temperatures compared to LE condition. Percentage changes of DPPH, ABTS, FRAP, and TPC after drying were not significantly influenced by the drying conditions (p > 0.05). The present study suggested that drying at 70°C without light exposure was the best condition to preserve curcuminoids, color, total phenolic contents, and antioxidant capacity. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Name: Bisdemethoxycurcumin).

Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Name: Bisdemethoxycurcumin

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

Upgrading of Kraft Lignin-Derived Bio-Oil over Hierarchical and Nonhierarchical Ni and/or Zn/HZSM5 Catalysts was written by Agarwal, Ashutosh;Park, Seong-Jae;Park, Jeong-Hun. And the article was included in Industrial & Engineering Chemistry Research in 2019.Recommanded Product: 2380-78-1 The following contents are mentioned in the article:

Synthesized hierarchical and nonhierarchical Ni and/or Zn/HZSM5 catalysts were compared for upgrading Kraft lignin-derived liquefaction bio-oil in a batch reactor at 300° for 1 h under a H₂ atmosphere in supercritical ethanol. The catalysts were characterized by N₂ adsorption-desorption isotherms, field emission SEM, energy dispersive X-ray spectroscopy, XPS, temperature-programmed desorption of ammonia, inductively coupled plasma-optical emission spectroscopy, and X-ray diffraction techniques. Results revealed that incorporation of Ni and Zn did not significantly affect the HZSM5 crystalline structure. The hydrogenated bio-oils were analyzed by means of gas chromatog.-mass spectrometry, and elemental anal. Upon bio-oil upgrading, the amounts of 4-ethylguaiacol and 4-propylguaiacol increased considerably on account of reduction in the amounts of unsubstituted guaiacol, 4-methylguaiacol, 4-propenylguaiacol, and homovanillic acid. The plausible bio-oil upgrading mechanism involved hydrogenation, alkylation, and deoxygenation. Hydrogenation and deoxygenation were prominent over hierarchical and nonhierarchical catalysts, resp. Highest HHV_Boie (∼29.93 MJ/kg) was obtained for both nonhierarchical 15Ni5Zn/HZSM5 and hierarchical 20Zn/HZSM5 catalysts, whereas the former was found to be more stable for bio-oil upgrading. Addnl., the upgraded bio-oils obtained over hierarchical and nonhierarchical catalysts were rich in hydrogen and carbon contents, resp. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Recommanded Product: 2380-78-1

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

Extractability of Curcuminoids Is Enhanced with Milk and Aqueous-Alcohol Mixtures was written by Kotha, Raghavendhar R.;Tareq, Fakir Shahidullah;Luthria, Devanand L.. And the article was included in Molecules in 2022.SDS of cas: 33171-05-0 The following contents are mentioned in the article:

In this study, we evaluated the extractability of three curcuminoids (curcumin, demethoxycurcumin, and bisdemethoxycurcumin) from turmeric powder in several solvents using high-performance liquid chromatog. (HPLC) with the diode-array detection method. These solvents include water, milk (homogenized, 2% reduced fat, low fat, fat free, soy, almond, coconut, and milkadamia), and aqueous ethanols (0%, 4%, 10%, 20%, 30%, 40%, 50%, and 100%). Ambient water was able to extract only 0.55 mg/g of curcuminoids, whereas warm water extracted more than four-fold higher amounts (2.42 mg/g). Almond, coconut, and milkadamia milk were able to extract only small amounts of curcuminoids at ambient temperatures (0.01-0.07 mg/g). The extractability of curcuminoids in these milk types did not improve, even in warm conditions (0.08-0.37 mg/g). Whereas dairy and soy milk extracted 6.76-9.75 mg/g of curcuminoids under ambient conditions, their extractability increased significantly in warm conditions by 30-100% higher (11.7-14.9 mg/g). The solubility of curcuminoids also varied remarkably in different proportions of aqueous-alc. mixtures With 4% ethanol, only 1.7 mg/g of curcuminoids were extracted, and the amounts improved with the increase in ethanol content up to 50% (32.2 mg/g), while 100% ethanol extracted a similar amount as 50% ethanol (34.2 mg/g). This study suggests that the extractability of curcuminoids from turmeric will be dependent on the type of diets consumed with the turmeric supplements. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0SDS of cas: 33171-05-0).

Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 33171-05-0

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

Extraction of phenolic compounds from palm oil processing residues and their application as antioxidants was written by Tsouko, Erminda;Alexandri, Maria;Fernandes, Keysson Vieira;Freire, Denise Maria Guimaraes;Mallouchos, Athanasios;Koutinas, Apostolis A.. And the article was included in Food Technology and Biotechnology in 2019.Computed Properties of C9H12O3 The following contents are mentioned in the article:

The side streams derived from the palm oil production process, namely palm kernel cake, palm pressed fiber, palm kernel shells and empty fruit bunches, were evaluated as sources of phenolic compounds Among these streams, kernel cake had the highest total phenolic content (in mg of gallic acid equivalent (GAE) per g of dry sample) with a value of 5.19, whereas the empty fruit bunches had the lowest value (1.79). The extraction time and liquid-to-solid ratio were investigated to optimize the phenolic extraction Kernel cake exhibited the highest total phenolic content (5.35 mg/g) with a liquid-to-solid ratio of 40:1 during 20 min of extraction The main phenolic compounds of the extracts deriving from all byproduct streams were also identified and quantified with HPLC-DAD. Pyrogallol, 4-hydroxybenzoic acid, gallic acid and ferulic acid were the main compounds found in kernel cake extracts Empty fruit bunch and pressed fiber extracts were also rich in 4-hydroxybenzoic acid, while pyrogallol was the predominant compound in kernel shell extracts All extracts showed antioxidant activity as it was indicated from the results of DPPH anal. and subsequently tested in sunflower oil aiming to prolong its shelf life. The addition of 0.8% kernel cake extract increased the induction time of sunflower oil more than 50%. According to the results obtained in this study, kernel cake extracts could be considered as a value-added co-product with a potential application as antioxidants in the food industry. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Computed Properties of C9H12O3).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Computed Properties of C9H12O3

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

Synthesis, DNA/RNA-interaction and biological activity of benzo[k,l]xanthene lignans was written by Tumir, Lidija-Marija;Zonjic, Iva;Zuna, Kristina;Brkanac, Sandra Radic;Jukic, Marijana;Hudjek, Ana;Durgo, Ksenija;Crnolatac, Ivo;Glavas-Obrovac, Ljubica;Cardullo, Nunzio;Pulvirenti, Luana;Muccilli, Vera;Tringali, Corrado;Stojkovic, Marijana Radic. And the article was included in Bioorganic Chemistry in 2020.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

Interactions of two newly synthesized and six previously reported benzoxanthene lignans (BXLs), analogs of rare natural products, with DNA/RNA, G-quadruplex and HSA were evaluated by a set of spectrophotometric methods. Presence/absence of methoxy and hydroxy groups on the BX core and minor modifications at C-1/C-2 side pendants-presence/absence of Ph ring, methoxy and hydroxy groups on Ph ring-influenced the fluorescence changes and the binding strength to double-stranded (ds-) and G-quadruplex structures. In general, compounds without Ph ring showed stronger fluorescence changes upon binding than phenyl-substituted BXLs. On the other hand, BXLs with an unsubstituted Ph ring showed the best stabilization effects of G-quadruplex. CD spectroscopy results suggest mixed binding mode, groove binding and partial intercalation, to ds-DNA/RNA and end-stacking to top or bottom G-tetrads as the main binding modes of BXLs to those targets. All compounds exhibited micromolar binding affinities toward HSA and an increased protein thermal stability. Moderate to strong antiradical scavenging activity was observed for all BXLs with hydroxy groups at C-6, C-9 and C-10 positions of the BX core, except for derivative bearing methoxy groups at these positions. BXLs with unsubstituted or low-substituted Ph ring and one derivative without Ph ring showed strong growth inhibition of Gram-pos. Staphylococcus aureus. All compounds showed moderate to strong tumor cell growth-inhibitory activity and cytotoxicity. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol

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

Ultralow interfacial tensions in water-n-alkane-surfactant systems was written by Sottmann, T.;Strey, R.. And the article was included in Journal of Chemical Physics in 1997.Recommanded Product: 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

The interfacial tensions between water- and oil-rich phases in the presence of microemulsions have been measured for ternary systems of water, n-alkanes, and nonionic alkylpolyglycolether surfactants (C_iE_j). It is found that the min. of the interfacial tension curve, which is observed for each system in conjunction with the well-known phenomenon of phase inversion, depends sensitively, but systematically, on the chem. nature of the oil and the surfactant. Specifically, the min. value of the interfacial tension σ̅_ab decreases by 1 order of magnitude on decreasing either the carbon number of the alkane k by 6, or the number of oxyethylene groups j by 3, or by increasing the number of carbon atoms in the surfactant tail i by 2. The numerical values of the interfacial tensions as a function of temperature are presented along with an empirical description previously suggested. From the anal., in terms of bending energy one obtains estimates for the bending and saddle-splay constants The similar shape of the interfacial tension curves permits a superposition of the data for all 19 systems in support of a scaling relation recently derived (Leitao, S. et al., 1996). Furthermore, we note a striking coincidence of the numerical values of critical amplitude ratio R = σ₀ξ₀² = 0.37 kT in near-critical systems and the product σ̅_abξ̅² = 0.44(±0.10) kT where ξ̅ is the maximum length scale in the bicontinuous microemulsions. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Recommanded Product: 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Recommanded Product: 2-(2-(Hexyloxy)ethoxy)ethanol

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

Impact of ultrasound-assisted extraction and solvent composition on bioactive compounds and in vitro biological activities of thyme and rosemary was written by Munekata, Paulo E. S.;Alcantara, Cristina;Zugcic, Tihana;Abdelkebir, Radhia;Collado, Maria Carmen;Garcia-Perez, Jose V.;Jambrak, Anet Rezek;Gavahian, Mohsen;Barba, Francisco J.;Lorenzo, Jose M.. And the article was included in Food Research International in 2020.HPLC of Formula: 2380-78-1 The following contents are mentioned in the article:

Mediterranean herbs, specially thyme and rosemary, are important ingredients in food preparation and more recently have been studied as natural sources of bioactive compounds This study aimed to study the effect of matrix (thyme vs. rosemary), and extraction protocol (conventional extraction vs. ultrasound assisted extraction) solvent composition (water vs. 50:50 ethanol:water solution) on the extraction of high value compounds (phenolic compounds, flavonoids and carotenoids) and also explore the antioxidant, antimicrobial (Listeria innocua, Staphylococcus aureus, and Salmonella enterica), probiotic (Lactobacillus casei and Bifidobacterium lactis), and anti-inflammatory activities. The phenolic, flavonoid and carotenoid content of extracts was greatly influenced by extraction conditions wherein the ultrasound pre-treatment improved the extraction of carotenoids but induced the opposite effect for polyphenols and flavonoids in both herbs. Only the aqueous extract of thyme obtained from ultrasound pre-treatment was the only extract that inhibited the growth of potentially pathogenic bacteria, stimulated the probiotic bacteria and achieved high anti-inflammatory and antioxidant activity. Moreover, this extract also was rich on phenolic compounds (such as p-coumaric acid 4-O-glucoside, kaempferol 3-O-rutinoside, feruloyl glucose, and 4-vinylguaiacol) and carotenoids. Therefore, ultrasound extraction of bioactive compounds with water as solvent could be explored in food and pharmaceutical applications. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1HPLC of Formula: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. HPLC of Formula: 2380-78-1

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

Deficit irrigation differently affects aroma composition in berries of Vitis vinifera L. (cvs Sangiovese and Merlot) grafted on two rootstocks was written by Palai, G.;Caruso, G.;Gucci, R.;D′Onofrio, C.. And the article was included in Australian Journal of Grape and Wine Research in 2022.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

Water deficit modifies the concentration of the aroma compounds of grape berries, but little information is available on the effect of deficits applied at different phenol. stages. We evaluated the effect of deficit irrigation on glycosylated volatile organic compounds (VOCs) responsible for the aroma of berries of Sangiovese and Merlot cultivars grafted on 1103P or SO4 rootstocks. Vines were subjected to either pre- or post-veraison water stress, and berry composition compared against that of fruit of fully irrigated vines. At harvest, a higher concentration of glycosylated VOCs was measured in berries from vines stressed pre-veraison, but while it increased as water deficit increased in Sangiovese, this occurred only at a low or moderate level of stress in Merlot. Post-veraison water stress had a neg. or negligible effect on the concentration of glycosylated VOCs in berries at harvest. The rootstock affected the concentration of glycosylated VOCs, particularly in vines stressed pre-veraison, with higher glycosylated VOCs observed for SO4 grafted vines than for 1103P grafted vines. Pre-veraison water deficit enhanced the concentration of berry glycosylated VOCs, while post-veraison deficit did not. The rootstock-scion interaction might amplify the irrigation effect on berry glycosylated VOCs. Modifying the timing and volume of irrigation might allow management of berry flavor for improved fruit and wine composition Irrigation protocols should be tailored for specific cultivar-rootstock combinations. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol

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

The recovery of strontium from acidic medium using novel strontium selective extractant: an experimental and DFT study was written by Khan, Pasupati Nath;Bhattacharyya, A.;Sharma, J. N.;Manohar, S.. And the article was included in Journal of Hazardous Materials in 2020.Category: ethers-buliding-blocks The following contents are mentioned in the article:

In view of the limited solvent system known for the Sr²⁺ extraction from acidic media, extraction and recovery of ⁹⁰Sr from acidic medium using novel Octabenzyloxyoctakis[[[((N,N-diethylamino)carbonyl)]methyl]oxy]calix[8]arene (BOC8A) extractant in nitro alkane medium are presented.. BOC8A and nitro alkanes have been synthesized and characterized by ¹H NMR, ¹³C NMR, FTIR and GC-MS techniques. Solvent composition of 0.01 M BOC8A in nitro octane (NO) has been optimized for substantial amount of extraction of strontium from feed acidity of 3.5-4 M nitric acid, (D_{3.5-4 M HNO3} = 7.1-7.8). Poor extraction of Pu⁴⁺, Ba²⁺, Na⁺ and UO₂⁺² and negligible extraction of Am³⁺, Cs⁺, Ru³⁺, Nd³⁺, Zr²⁺ and trivalent lanthanides are observed Ion dissociation mechanism was found to be operative involving an extractable complex having Sr²⁺, BOC8A and HNO₃ in a ratio of 1:1:2. About 99% of Sr²⁺ from the loaded solvent was recovered with 0.01 M HNO₃. DFT calculations were used to predict the structures of free, protonated BOC8A and its complex with Sr²⁺. DFT result showed reorientation in conformation of BOC8A due to protonation resulting in the Sr²⁺ extraction from acidic medium with significantly high interaction energy between Sr²⁺ and diprotonated form of BOC8A. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Category: ethers-buliding-blocks).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Category: ethers-buliding-blocks

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

The recovery of strontium from acidic medium using novel strontium selective extractant: an experimental and DFT study was written by Khan, Pasupati Nath;Bhattacharyya, A.;Sharma, J. N.;Manohar, S.. And the article was included in Journal of Hazardous Materials in 2020.Recommanded Product: 103-16-2 The following contents are mentioned in the article:

In view of the limited solvent system known for the Sr²⁺ extraction from acidic media, extraction and recovery of ⁹⁰Sr from acidic medium using novel Octabenzyloxyoctakis[[[((N,N-diethylamino)carbonyl)]methyl]oxy]calix[8]arene (BOC8A) extractant in nitro alkane medium are presented.. BOC8A and nitro alkanes have been synthesized and characterized by ¹H NMR, ¹³C NMR, FTIR and GC-MS techniques. Solvent composition of 0.01 M BOC8A in nitro octane (NO) has been optimized for substantial amount of extraction of strontium from feed acidity of 3.5-4 M nitric acid, (D_{3.5-4 M HNO3} = 7.1-7.8). Poor extraction of Pu⁴⁺, Ba²⁺, Na⁺ and UO₂⁺² and negligible extraction of Am³⁺, Cs⁺, Ru³⁺, Nd³⁺, Zr²⁺ and trivalent lanthanides are observed Ion dissociation mechanism was found to be operative involving an extractable complex having Sr²⁺, BOC8A and HNO₃ in a ratio of 1:1:2. About 99% of Sr²⁺ from the loaded solvent was recovered with 0.01 M HNO₃. DFT calculations were used to predict the structures of free, protonated BOC8A and its complex with Sr²⁺. DFT result showed reorientation in conformation of BOC8A due to protonation resulting in the Sr²⁺ extraction from acidic medium with significantly high interaction energy between Sr²⁺ and diprotonated form of BOC8A. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Recommanded Product: 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 103-16-2

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