Category: alcohols-buliding-blocks

Nagasawa, Yoshiyuki published the artcileHydrogenation of 4-Propylphenol over Carbon-supported Palladium Catalyst without External Hydrogen: Effect of Carbon Support and Palladium Loading, Computed Properties of 645-56-7, the publication is Chemistry Letters (2021), 50(3), 431-434, database is CAplus.

The ring hydrogenation of 4-propylphenol in aqueous ethanol solution was studied over graphite- and activated carbon-supported palladium catalysts (Pd/G and Pd/C) with 0.1-5 wt% of palladium loadings without using external hydrogen. Decomposition of ethanol produced hydrogen which was responsible for the hydrogenation of 4-propylphenol over palladium metal particles on both the supports in aqueous medium. The different hydrogenation behaviors were discussed based on surface properties of supports.

Chemistry Letters published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Computed Properties of 645-56-7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Asahara, Teruzo published the artcileTelomerization of ethylene and carbon tetrachloride initiated by amines, Quality Control of 4543-95-7, the publication is Bulletin of the Japan Petroleum Institute (1965), 35-40, database is CAplus.

cf. CA 62, 1554a. In this reaction, strongly basic amines are excellent initiators. Primary amines are more effective than secondary or tertiary structures, and branched amines are inferior to n-amines. Alkanolamines are also excellent initiators. The experiments were carried out in a stainless steel autoclave in the absence of metallic salts. tert-Butanol is a preferred solvent for this reaction. Generally, the higher the dielec. constant of the hydroxylic solvent, the greater the yield of telomer. Aprotic solvents show no such regular influence. 13 references.

Bulletin of the Japan Petroleum Institute published new progress about 4543-95-7. 4543-95-7 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 4-(Butylamino)butan-1-ol, and the molecular formula is C8H19NO, Quality Control of 4543-95-7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Xu, Shibo published the artcileNickel-Catalyzed Regio- and Stereospecific C-H Coupling of Benzamides with Aziridines, Application of 2-Aminobutan-1-ol, the publication is Organic Letters (2021), 23(14), 5471-5475, database is CAplus and MEDLINE.

A nickel-catalyzed C-H coupling of 8-aminoquinoline-derived benzamides with aryl- and alkyl-substituted aziridines was disclosed. The current strategy provided direct access to benzolactams by the C-H alkylation-intramol. amidation cascade event with the concomitant removal of the aminoquinoline auxiliary. The regioselectivity of ring opening of aziridines was controlled by the substituents. The reaction with chiral aziridines proceeded with inversion of configuration, thus suggesting an SN²-type nucleophilic ring-opening pathway.

Organic Letters published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C11H24O3, Application of 2-Aminobutan-1-ol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Fuwa, Haruhiko published the artcileSynthesis of biotinylated photoaffinity probes based on arylsulfonamide γ-secretase inhibitors, Synthetic Route of 120103-18-6, the publication is Bioorganic & Medicinal Chemistry Letters (2006), 16(16), 4184-4189, database is CAplus and MEDLINE.

Synthesis and biol. evaluation of arylsulfonamide inhibitors of γ-secretase are described. Design, synthesis, and biol. evaluation of multifunctional mol. probes harboring a benzophenone photophore as a crosslinking group and a biotin tag are also reported.

Bioorganic & Medicinal Chemistry Letters published new progress about 120103-18-6. 120103-18-6 belongs to alcohols-buliding-blocks, auxiliary class Fluoride,Nitro Compound,Benzene,Phenol, name is 2,5-Difluoro-4-nitrophenol, and the molecular formula is C6H3F2NO3, Synthetic Route of 120103-18-6.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Brady, Stephen F. published the artcileSome novel, acid-labile amine protecting groups, SDS of cas: 20117-47-9, the publication is Journal of Organic Chemistry (1977), 42(1), 143-6, database is CAplus and MEDLINE.

RO2C-Phe-OH [I; R = cyclopropylmethyl (CP), 1-methylcyclobutyl (MCB), cyclobutyl, 1-methylcyclohexyl, 1-cyclopropylethyl] and R1O2C-Phe-Ala-OMe (R1 = CP, MCB) were prepared After 48 hr in 50% HOAc, >99% of MCBO2C-Phe-OH (II) remained unchanged, whereas under the same conditions 10-15% of BOC was cleaved from BOC-Phe-OH. However, the complete removal of MCBO2C was achieved by treating II with CF3CO2H at 25° for 30 min. ROH were treated with COCl2 to give RO2CCl which were treated with phenylalanine or with H-Phe-OMe and saponified to give I.

Journal of Organic Chemistry published new progress about 20117-47-9. 20117-47-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic cyclic hydrocarbon,Alcohol, name is 1-Methylcyclobutan-1-ol, and the molecular formula is C5H10O, SDS of cas: 20117-47-9.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Luleburgaz, Serter published the artcileChlorodimethylsilane-Mediated Reductive Etherification Reaction: A Robust Method for Polyether Synthesis, Name: Pentane-1,5-diol, the publication is Macromolecules (Washington, DC, United States) (2022), 55(5), 1533-1543, database is CAplus.

Polyethers have always been privileged compounds in polymer chem. and have found extensive applications in both academic research and industry. However, the currently employed strategies for their synthesis require harsh conditions such as ionic polymerizations together with limited precursor monomer options. In this study, a chlorodimethylsilane (CDMS)-mediated reductive etherification reaction was introduced as a versatile strategy for polyether synthesis. Accordingly, terephthalaldehyde (TPA) and 1,4-butanediol were first reacted at room temperature in the presence of CDMS using nitromethane as the polymerization solvent to reveal the optimum conditions for the proposed system. Subsequently, a variety of diols ranging from linear to sterically congested diols were reacted with TPA (and its isomers) under the optimized conditions to create a polyether library. Meanwhile, in addition to polyether having the expected alternating units, the formation of polyether stem from the self-condensation of TPA was found to be inevitable in all cases. From the proposed strategy, polyethers with a mol. weight of up to 110.4 kDa and a high alternating unit of up to 93% were obtained. The versatile and robust character of the presented strategy was supported by a model end-group study, and the polymerization behavior was examined mechanistically. It is anticipated that the presented method might be a strong candidate for polyether synthesis with different backbones, given the unlimited sources of diols.

Macromolecules (Washington, DC, United States) published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Name: Pentane-1,5-diol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yu, Wanwan published the artcileA Catalytic Oxidative Quinone Heterofunctionalization Method: Synthesis of Strongylophorine-26, Application of 2-Morpholinoethanol, the publication is Angewandte Chemie, International Edition (2018), 57(31), 9805-9809, database is CAplus and MEDLINE.

The preparation of heteroatom-substituted p-quinones is ideally performed by direct addition of a nucleophile followed by in situ reoxidation Albeit an appealing strategy, the reactivity of the p-quinone moiety is not easily tamed and no broadly applicable method for heteroatom functionalization exists. Shown herein is that Co(OAc)₂ and Mn(OAc)₃·2H₂O act as powerful catalysts for oxidative p-quinone functionalization with a collection of O, N, and S nucleophiles, using oxygen as the terminal oxidant. Preliminary mechanistic observations and the first synthesis of the cytotoxic natural product strongylophorine-26, I, is presented.

Angewandte Chemie, International Edition published new progress about 622-40-2. 622-40-2 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Alcohol, name is 2-Morpholinoethanol, and the molecular formula is C6H8O4, Application of 2-Morpholinoethanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Gential, Geoffroy P. P. published the artcileSynthesis and evaluation of fluorescent Pam₃Cys peptide conjugates, HPLC of Formula: 57044-25-4, the publication is Bioorganic & Medicinal Chemistry Letters (2016), 26(15), 3641-3645, database is CAplus and MEDLINE.

Chirally pure R- and S-epimers of TLR2 ligand Pam₃CysSK₄ were prepared and sep. conjugated to an OVA model epitope, in which lysine was replaced by azidonorleucine. The azide function in the conjugate permitted labeling with different fluorophores by use of strain-promoted 3+2 cycloaddition The R-epimer of the labeled conjugates induced TLR2-dependent DC maturation, while S-epimer proved to be inactive. Combining the lipophilicity of Pam₃CysSK₄ ligand with fluorophores influenced the solubility of the resulting conjugates in an unpredictable way and only the conjugates labeled with Cy-5 were suitable for confocal fluorescence microscopy experiments It was shown that both epimers of the Cy-5 labeled lipopeptides were internalized equally well, indicating TLR2-independent cellular uptake. The presented results demonstrate the usefulness of strain-promoted azide-alkyne cycloaddition in the labeling of highly lipophilic lipopeptides without disturbing the in vitro activity of these conjugates with respect to activation of TLR-2.

Bioorganic & Medicinal Chemistry Letters published new progress about 57044-25-4. 57044-25-4 belongs to alcohols-buliding-blocks, auxiliary class Epoxides,Chiral,Aliphatic hydrocarbon chain,Alcohol, name is (R)-Oxiran-2-ylmethanol, and the molecular formula is C3H6O2, HPLC of Formula: 57044-25-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Ijitsu, Shin published the artcilePreparation of novel functional drug particles embedded in a gelling-swelling layer (PEGS) for taste masking and subsequent rapid drug release, Application In Synthesis of 23828-92-4, the publication is Chemical & Pharmaceutical Bulletin (2021), 69(4), 383-390, database is CAplus.

The purpose of this research was to develop novel functional drug particles embedded in a gelling-swelling layer (PEGS) which are capable of achieving both taste-masking of unpalatable drugs and rapid drug elution. The functional particles had a three-layer structure consisting of a core drug layer, a gelling-swelling layer and an outer water-penetration control layer containing a water-insoluble polymer. The concept of formulation design was as follows: when water reaches the gelling-swelling layer, pulverized fine gelling-swelling particles gellate and swell from water absorption to form a rigid layer, thereby preventing drug release. After a defined lag time, the increased volume of the gelling-swelling layer breaks down the outer water-penetration control layer, leading to rapid drug release. In order to adapt this system for use in orally disintegrating tablets, PEGS were prepared at a size of about 250μm using a fine particle-coating method. Ambroxol hydrochloride was used as a model drug for bitterness and the effects of different gelling-swelling agents and water-insoluble polymers on drug release characteristics from PEGS were examined In in vitro dissolution tests, it was shown that the drug dissolution rate from PEGS could be suppressed to about 5% after 2 min and increased to more than 85% after 30 min by adjusting the composition and thickness of the outer layer. The PEGS expanded about 1.5-fold and the outer layer was ruptured after 5 min in water.

Chemical & Pharmaceutical Bulletin published new progress about 23828-92-4. 23828-92-4 belongs to alcohols-buliding-blocks, auxiliary class Membrane Transporter/Ion Channel,Sodium Channel, name is trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride, and the molecular formula is C13H19Br2ClN2O, Application In Synthesis of 23828-92-4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Beck, R. published the artcilePhase behaviour and physical properties of mixtures of calcium salts of α-sulfonated fatty acid methyl ester and a cosurfactant, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol, the publication is Physical Chemistry Chemical Physics (2001), 3(24), 5438-5443, database is CAplus.

We have studied the phase behavior of mixtures of calcium salts of α-sulfonated fatty acid Me ester Ca(C_x-α-MES)₂ and a monoglycerin ether as cosurfactant (EHG). The mol. interactions between the surfactant and the cosurfactant and the influence on the phase behavior have been studied systematically. With increasing cosurfactant concentration the micellar L₁-phase shows a transition to an L_α-phase and an L₃ sponge phase. The L₃-phase is observed for the first time in a ternary phase diagram of a Ca-salt of a α-sulfonated fatty acid Me ester, the cosurfactant 2-ethylhexyl-monoglyceride and water. As for other ternary surfactant/cosurfactant systems, the L₃-phase occurs with increasing cosurfactant/surfactant ratios after the L_α-phase. Some properties of the newly observed L₃-phase are the same as for other known L₃-phases. It is a low viscosity, optically isotropic fluid with a low flow birefringence. The time constants τ of the elec. birefringence results scale with τ ∼ Φ^-3. Its conductivity is very much higher than the conductivity of the neighboring L_α-phase. However there are some marked differences from known normal L₃-phases. The novel L₃-phase is thermodynamically stable in spite of ionic charges on the bilayer. There is no two phase region between the L_α and the L₃-phase in the system Ca(C₁₄-αMES)₂/EHG and the L₃-phase is stable over a wide cosurfactant/surfactant ratio between one and two. In SANS measurements it shows a broad correlation peak that occurs at about the same position as the sharper peak in the L_α-phase. The structure of the L₃-phase is demonstrated by FF-TEM micrographs.

Physical Chemistry Chemical Physics published new progress about 70445-33-9. 70445-33-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is 3-((2-Ethylhexyl)oxy)propane-1,2-diol, and the molecular formula is C11H24O3, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts