Category: ethers-buliding-blocks

Kushawaha, Ajay Kishor published the artcileA simple and efficient oxidation of primary and secondary benzylamines to acids using table salt in aqueous medium, Related Products of ethers-buliding-blocks, the publication is Tetrahedron (2021), 132502, database is CAplus.

A novel, simple, efficient method for the oxidation of aromatic benzylamines RCH₂NH₂ (R = C₆H₅, 4-FC₆H₄, 2-thienyl, etc.), R¹CH₂NHCH₂R¹ (R¹ = C₆H₅, 4-ClC₆H₄, 2-thienyl, etc.) and 4-OCH₃C₆H₄CH₂NHR₂ (R₂ = Me, Et, Pr, n-octyl, t-butyl) to corresponding acids RC(O)OH, R¹C(O)OH and 4-methoxybenzoic acid using common table salt in aqueous medium has been described. Oxidation of benzylamine was achieved by using NaCl (20 mol%) as a catalyst, NaOH (4 equiv) and TBHP (5 equiv) as oxidant, in moderate to good yields (34-84%). Control experiments revealed that in situ generated ClO₂^– ion is the active form of the catalyst. This methodol. can also be scaled up for easy accessibility to the industrially important terephthalic acid as well. This investigation provided a facile entry of various primary as well as secondary benzylamines with wide range of functional group tolerance.

Tetrahedron published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C8H11NO, Related Products of ethers-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Zawadiak, Jan published the artcileThe liquid-phase oxidation of isomeric methoxy-(1-methylethyl)benzenes with oxygen to the hydroperoxides, Computed Properties of 2944-47-0, the publication is International Journal of Chemical Kinetics (2004), 37(1), 10-16, database is CAplus.

The kinetics of liquid-phase oxidation of 1-methoxy-2-(1-methylethyl)benzene (1a), 1-methoxy-3-(1-methylethyl)benzene (1b), and 1-methoxy-4-(1-methylethyl)benzene (1c) with oxygen as oxidant to yield the corresponding 1-methyl-1-(2-methoxyphenyl)ethyl (2a), 1-methyl-1-(3-methoxyphenyl)ethyl (2b), and 1-methyl-1-(4-methoxyphenyl)ethyl (2c) hydroperoxides was studied. The oxidizabilities of 1a, 1b, and 1c were established over the temperature range 50-120°C. The overall activation energies of oxidation were determined for 1b and 1c over the temperature range 50-120°C. Thermal stability of 2a and 2b and the initiating properties of hydroperoxides 2a, 2b, and 2c were studied. Long-term noncatalytic oxidations of 1b and 1c to resp. hydroperoxides were carried out.

International Journal of Chemical Kinetics published new progress about 2944-47-0. 2944-47-0 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether, name is 2-Isopropylanisole, and the molecular formula is C6H8O6, Computed Properties of 2944-47-0.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Adamska-Bartlomiejczyk, Anna published the artcileCyclic mu-opioid receptor ligands containing multiple N-methylated amino acid residues, Safety of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-phenylpropanoic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2017), 27(8), 1644-1648, database is CAplus and MEDLINE.

In this study we report the in vitro activities of four cyclic opioid peptides with various sequence length/macrocycle size and N-methylamino acid residue content. N-Methylated amino acids were incorporated and cyclization was employed to enhance conformational rigidity to various extent. The effect of such modifications on ligand structure and binding properties were studied. The pentapeptide containing one endocyclic and one exocyclic N-methylated amino acid displayed the highest affinity to the μ-opioid receptor. This peptide was also shown to be a full agonist, while the other analogs failed to activate the μ-opioid receptor. Results of mol. docking studies provided rationale for the explanation of binding properties on a structural basis.

Bioorganic & Medicinal Chemistry Letters published new progress about 77128-73-5. 77128-73-5 belongs to ethers-buliding-blocks, auxiliary class Inhibitor, name is (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-phenylpropanoic acid, and the molecular formula is C25H23NO4, Safety of (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-phenylpropanoic acid.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Choi, Won-Sik published the artcileSynthesis and antifungal activities of isopropylphenyl derivatives, Quality Control of 2944-47-0, the publication is Han’guk Eungyong Sangmyong Hwahakhoeji (2007), 50(3), 178-186, database is CAplus.

42 Compounds such as ester, sulfonyl ester, phosphoryl ester and ether derivatives of 4-isopropylphenol and 2-isopropylphenol were synthesized. These derivatives were identified by IR, GC/MS and ¹H-NMR spectra. Their in vitro antifungal activities were tested against 10 plant pathogenic fungi. Among them, several compounds showed potent in vitro antifungal activity. The selected compounds showing potent in vitro antifungal activity were tested for their in vivo antifungal activities against 5 plant diseases such as rice blast, rice sheath blast, cucumber anthracnose, cucumber gray mold and tomato late blight. As a result, 2-isopropylphenyl piperonylate (I) showed a potent in vivo antifungal activity against cucumber anthracnose and tomato late blight, 4-isopropylphenyl 4-methoxybenzenesulfonate (II) effectively inhibited the development of rice blast.

Han’guk Eungyong Sangmyong Hwahakhoeji published new progress about 2944-47-0. 2944-47-0 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether, name is 2-Isopropylanisole, and the molecular formula is C10H14O, Quality Control of 2944-47-0.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Ahn, Taek published the artcileBlue Electroluminescent Polymers: Control of Conjugation Length by Kink Linkages and Substituents in the Poly(p-phenylenevinylene)-Related Copolymers, Synthetic Route of 146370-51-6, the publication is Macromolecules (1999), 32(10), 3279-3285, database is CAplus.

Poly[o(m,p)-phenylenevinylene-alt-2-methoxy-5-(2-ethylhexyloxy)-p-phenylenevinylene], o(m,p)-PMEH-PPV, and poly[o(m,p)-phenylenevinylene-alt-2,5-bis(trimethylsilyl)-p-phenylenevinylene], o(m,p)-PBTMS-PPV, of varying effective conjugation lengths were synthesized by the well-known Wittig condensation polymerization between the appropriate diphosphonium salts and the dialdehyde monomers such as terephthaldicarboxaldehyde, isophthalaldehyde, and phthalic dicarboxaldehyde. The conjugation lengths of the polymers were controlled by substituents and kink (ortho and meta) linkages. The resulting polymers were highly soluble in common organic solvents. The synthesized polymers showed UV-visible absorbance and photoluminescence (PL) in the ranges of 330-430 nm and 440-550 nm, resp. The maximum emission peak of p-PMEH-PPV was blue shifted about 30 nm compared to that of MEH-PPV, which is due to an unsubstituted phenylene unit. In addition, o-PMEH-PPV and m-PMEH-PPV showed PL emission maximum peaks at 500 and 490 nm, resp., because ortho and meta linkage of the o(m)-PMEH-PPV reduced π-conjugation lengths. The trimethylsilyl substituent has no electron donating effect; therefore, the PL maximum of p-PBTMS-PPV was far more blue shifted (to 485 nm). Consequently, maximum PL wavelengths for o-PBTMS-PPV and m-PBTMS-PPV appeared around 470 and 440 nm, resp. A single-layer light-emitting diode device was fabricated which has a simple ITO (indium-tin oxide)/polymer/Al configuration. The threshold bias of trimethylsilyl-substituted o(m,p)-PBTMS-PPV was in the range of 8-9 V. As in the photoluminescence spectra, the dramatic change of emission color was also shown in electroluminescence spectra of p-PMEH-PPV, p-PBTMS-PPV, and o-PBTMS-PPV when the operating voltage was about 8-9 V.

Macromolecules published new progress about 146370-51-6. 146370-51-6 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether, name is 1-((2-Ethylhexyl)oxy)-4-methoxybenzene, and the molecular formula is C15H24O2, Synthetic Route of 146370-51-6.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Wojcik-Pszczola, Katarzyna published the artcileSynthesis and in vitro evaluation of anti-inflammatory, antioxidant, and anti-fibrotic effects of new 8-aminopurine-2,6-dione-based phosphodiesterase inhibitors as promising anti-asthmatic agents, Safety of (2-Methoxyphenyl)methanamine, the publication is Bioorganic Chemistry (2021), 105409, database is CAplus and MEDLINE.

Phosphodiesterase inhibitors are currently an extensively studied group of compounds that can bring many benefits in the treatment of various inflammatory and fibrotic diseases, including asthma. Herein, we describe a series of novel N�phenyl- or N�benzylbutanamide and N�arylidenebutanehydrazide derivatives of 8-aminopurine-2,6-dione (27-43) and characterized them as prominent pan-PDE inhibitors. Most of the compounds exhibited antioxidant and anti-inflammatory activity in LPS-induced murine macrophages RAW264.7. The most active compounds (32-35 and 38) were evaluated in human bronchial epithelial cells derived from asthmatics. To better map the bronchial microenvironment in asthma, HBECs after exposure to selected 8-aminopurine-2,6-dione derivatives were incubated in the presence of two proinflammatory and/or profibrotic factors: TGF-beta and IL-13. Detailed anal. of their inhibition preferences for selected PDEs showed high affinity for isoenzymes important in the pathogenesis of asthma, including PDE1, PDE3, PDE4, PDE7, and PDE8. The presented data confirm that structural modifications within the 7 and 8 positions of the purine-2,6-dione core result in obtaining preferable pan-PDE inhibitors which in turn exert an excellent anti-inflammatory and anti-fibrotic effect in the bronchial epithelial cells derived from asthmatic patients. This dual-acting pan-PDE inhibitors constitute interesting and promising lead structures for further anti-asthmatic agent discovery.

Bioorganic Chemistry published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C4H10O2, Safety of (2-Methoxyphenyl)methanamine.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Keim, Michael published the artcile1,3-Bis(trifluoromethyl)prop-2-ene 1-Iminium Salts: Reactions with Alkoxybenzenes and Anilines, Formula: C8H10O2, the publication is Synthesis (2022), 54(6), 1587-1600, database is CAplus.

1,3-Bis(trifluoromethyl)prop-2-ene 1-iminium triflate salts were prepared for the first time and some synthetic applications as 1,3-biselectrophilic building blocks were established. They were found to react with dimethoxybenzenes or methylene-1,2-dioxybenzenes to furnish vinylogous trifluoroacetylation products (4-aryl-1,1,1,5,5,5-hexafluoropent-3-en-2-ones) and 1-dialkylamino-1,3-bis(trifluoromethyl)-1 H-indenes. With aniline and ring-substituted anilines, 2,4-bis(trifluoromethyl)quinolines were formed. An unusual 4 H-pyran, formally a condensation product of the N, N-dimethyl-1,3-bis(trifluoromethyl)prop-2-en-1-iminium ion and its enaminone precursor, is also reported.

Synthesis published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Formula: C8H10O2.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Favre-Godal, Quentin published the artcileExtensive Phytochemical Assessment of Dendrobium fimbriatum Hook (Orchidaceae), Name: 4-Hydroxy-3,5-dimethoxybenzaldehyde, the publication is Natural Product Communications (2022), 17(3), 1934578X221074526, database is CAplus.

Dendrobium fimbriatum Hook is an important medicinal and ornamental orchid that may lead to important drugs and cosmetics. In this study, 2 anal. strategies were combined to describe the detailed composition of a hydroethanolic extract of the whole plant. The CARAMEL approach, based on centrifugal partition chromatog. and NMR data interpretation, allowed the rapid dereplication of 21 major constituents, mainly including polyols, nucleosides, zwitterionic compounds, phenolic compounds, and organic acids. Further semipreparative high-performance liquid chromatog. and spectroscopic analyses led to the isolation of 6 addnl. compounds; 4 phenanthrenes (plicatol B, hircinol, plicatol A, and plicatol C), 1 bibenzyl (3�4-dihydroxy-3,5�dimethoxybibenzyl), and 1 furostanol saponin (protodioscin), as well as a new phenanthrene derivative, plicatol D. A total of 28 metabolites were structurally elucidated, among which 23 are described for this species for the first time.

Natural Product Communications published new progress about 134-96-3. 134-96-3 belongs to ethers-buliding-blocks, auxiliary class Immunology/Inflammation,COX,Natural product, name is 4-Hydroxy-3,5-dimethoxybenzaldehyde, and the molecular formula is C9H10O4, Name: 4-Hydroxy-3,5-dimethoxybenzaldehyde.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

DeSelm, Lizbeth published the artcileIdentification of Clinical Candidate M2698, a Dual p70S6K and Akt Inhibitor, for Treatment of PAM Pathway-Altered Cancers, Computed Properties of 6850-57-3, the publication is Journal of Medicinal Chemistry (2021), 64(19), 14603-14619, database is CAplus and MEDLINE.

The discovery of a novel class of quinazoline carboxamides such as I [R¹ = H, Me; R² = Ph, 3-FC₆H₄, 4-MeOC₆H₄, etc.] as dual p70S6k/Akt inhibitors for the treatment of tumors driven by alterations to the PI3K/Akt/mTOR (PAM) pathway was reported. Through the screening of inhouse proprietary kinase library, 4-benzylamino-quinazoline-8-carboxylic acid amide 1 stood out, with sub-micromolar p70S6k biochem. activity, as the starting point for a structurally enabled p70S6K/Akt dual inhibitor program that led to the discovery of M2698, a dual p70S6k/Akt inhibitor. Compound M2698 [II] is kinase selective, possesses favorable phys., chem., and DMPK profiles, was orally available and well tolerated, and displayed tumor control in multiple in vivo studies of PAM pathway-driven tumors.

Journal of Medicinal Chemistry published new progress about 6850-57-3. 6850-57-3 belongs to ethers-buliding-blocks, auxiliary class Amine,Benzene,Ether, name is (2-Methoxyphenyl)methanamine, and the molecular formula is C8H11NO, Computed Properties of 6850-57-3.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Zhang, Yifan published the artcileElectron transfer capacity of humic acid in soil micro and macro aggregates in response to mulching years, Safety of 4-Hydroxy-3,5-dimethoxybenzaldehyde, the publication is Science of the Total Environment (2022), 154927, database is CAplus and MEDLINE.

Plastic film mulching can help farmers meet food production requirements and even increase output. Although the environmental impact of this mulch has received attention, uncertainty remains about certain soil components and the course of its long-term effects. In particular, it is not clear whether the long-term use of mulching film will affect the electron transfer capacity (ETC) of natural organic matter in the soil. This study evaluated the electron-accepting capacity (EAC) and electron-donating capacity (EDC) of soil humic acid (HA) in different-size aggregates in response to different film mulching years (0-6 years). The EAC of HA in the soil showed a downward trend as mulching years increased, while the EDC fluctuated. EAC decline in microaggregates (MIA) was more significant than that of macroaggregates (MAA). Film mulching changes the phys. and chem. properties of soil and the activity of enzymes, changes the chem. structure of HA, and ultimately affects HA electron transfer. In addition, compared with that in MAA, the chem. structure of soil HA in MIA has a stronger correlation with enzyme activity and ETC and thus is more significantly affected by mulching. These results provide an in-depth understanding of the role of HA in soil aggregates of different sizes in processes related to the agricultural soil environment under mulching conditions.

Science of the Total Environment published new progress about 134-96-3. 134-96-3 belongs to ethers-buliding-blocks, auxiliary class Immunology/Inflammation,COX,Natural product, name is 4-Hydroxy-3,5-dimethoxybenzaldehyde, and the molecular formula is C17H14F3N3O2S, Safety of 4-Hydroxy-3,5-dimethoxybenzaldehyde.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem