Results 31 to 40 of about 6,679,265 (341)

Biocatalytic N-Alkylation of Amines Using Either Primary Alcohols or Carboxylic Acids via Reductive Aminase Cascades.

Journal of the American Chemical Society, 2019
The alkylation of amines with either alcohols or carboxylic acids represents a mild and safe alternative to the use of genotoxic alkyl halides and sulfonate esters.
J. I. Ramsden, Rachel S. Heath, Sasha R. Derrington, S. L. Montgomery, J. Mangas-Sánchez, K. Mulholland, N. Turner   +6 more
semanticscholar   +1 more source

Safety and efficacy of aryl‐substituted primary alcohol, aldehyde, acid, ester and acetal derivatives belonging to chemical group 22 when used as flavourings for all animal species

EFSA Journal, 2017
Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of 18 compounds belonging to chemical group (CG) 22.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Guido Rychen, Gabriele Aquilina, Giovanna Azimonti, Vasileios Bampidis, Maria de Lourdes Bastos, Georges Bories, Pier Sandro Cocconcelli, Gerhard Flachowsky, Jürgen Gropp, Boris Kolar, Maryline Kouba, Secundino López Puente, Marta López‐Alonso, Alberto Mantovani, Baltasar Mayo, Fernando Ramos, Maria Saarela, Roberto Edoardo Villa, Robert John Wallace, Pieter Wester, Paul Brantom, Birgit Dusemund, Christer Hogstrand, Patrick Van Beelen, Johannes Westendorf, Lucilla Gregoretti, Paola Manini, Andrew Chesson   +28 more
doaj   +1 more source

Establishment of salicylic acid derived silylation reagents for protection of alcohols

Results in Chemistry, 2021
In this work, we describe salicylic acid derived 2-[(trimethylsilyl)oxy]-benzoic acid methyl ester (TMSSME) and its TBDMS- (TBDMSSME) and TIPS-analogous (TIPSSME) as novel silylation reagents to furnish silyl ethers from alcohols.
Max Amann, Peter Fritz, Alexis Krupp, Stefan Heuser   +3 more
doaj   +1 more source

Manganese(I)-Catalyzed α-Alkenylation of Ketones Using Primary Alcohols.

Organic Letters, 2019
A simple protocol of manganese catalyzed selective α-alkenylation of ketones using primary alcohols is reported. The reactions proceeded well with a low loading of catalyst (0.3 mol %).
S. Gawali, Biplab Keshari Pandia, C. Gunanathan   +2 more
semanticscholar   +1 more source

Efficient Synthesis and Reaction Kinetics of Readily Water Soluble Esters Containing Sulfonic Groups

Molecules, 2014
A series of various readily water soluble esters were synthesized by a very efficient procedure. These compounds can be useful as thermosensitive tracers for studying the cooling progress in a low enthalpy georeservoir exploitable by double flash ...
Krzysztof R. Idzik, Karsten Nödler, Friedrich Maier, Tobias Licha   +3 more
doaj   +1 more source

Cytochrome P450 family member CYP96B5 hydroxylates alkanes to primary alcohols and is involved in rice leaf cuticular wax synthesis.

New Phytologist, 2019
Odd-numbered primary alcohols are components of plant cuticular wax, but their biosynthesis remains unknown. We isolated a rice wax crystal-sparse leaf 5 (WSL5) gene using a map-based cloning strategy.
Du Zhang, Huifang Yang, Xiaocheng Wang, Yijian Qiu, Lihong Tian, X. Qi, L. Qu   +6 more
semanticscholar   +1 more source

Acid-catalysed carboxymethylation, methylation and dehydration of alcohols and phenols with dimethyl carbonate under mild conditions [PDF]

, 2016
Dimethyl carbonate (DMC) chemistry has been extended to include acid-catalysed reactions of different aliphatic alcohols and phenols. For the first time, p-toluenesulfonic acid (PTSA), H2SO4, AlCl3 and FeCl3 have been shown to aid carboxymethylation for ...
Clark, James H., Hunt, Andrew J., Jin, Saimeng, McElroy, Con Robert   +3 more
core   +1 more source

Ketone Synthesis by a Nickel-Catalyzed Dehydrogenative Cross-Coupling of Primary Alcohols.

Journal of the American Chemical Society, 2019
An intermolecular coupling of primary alcohols and organotriflates has been developed to provide ketones by the action of a Ni(0) catalyst. This oxidative transformation is proposed to occur by the union of three distinct catalytic cycles.
T. Verheyen, Lars van Turnhout, J. Vandavasi, Eric S. Isbrandt, W. D. De Borggraeve, S. Newman   +5 more
semanticscholar   +1 more source

Scientific Opinion on Flavouring Group Evaluation 3, Revision 2 (FGE.03Rev2): Acetals of branched‐ and straight‐chain aliphatic saturated primary alcohols and branched‐ and straight‐chain saturated or unsaturated aldehydes, an ester of a hemiacetal and an orthoester of formic acid, from chemical groups 1, 2 and 4

EFSA Journal, 2011
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to evaluate one flavouring substance, acetaldehyde ethyl isopropyl acetal [FL‐no: 06.137], structurally related to the 58 ...
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Review of catalytic systems and thermodynamics for the Guerbet condensation reaction and challenges for biomass valorization [PDF]

, 2015
The Guerbet condensation reaction is an alcohol coupling reaction that has been known for more than a century. Because of the increasing availability of bio-based alcohol feedstock, this reaction is of growing importance and interest in terms of value ...
Gabriels, D, Hernández Enciso, Willinton Yesid, Sels, B, Van Der Voort, Pascal, Verberckmoes, An   +4 more
core   +2 more sources