A cyanide‐free platform technology for the synthesis of chiral nitriles by biocatalytic enantioselective dehydration of a wide range of aldoximes is reported. The nitriles were obtained with high enantiomeric excess of >90 % ee (and up to 99 % ee) in many cases, and a “privileged substrate structure” with respect to high enantioselectivity was identified. Furthermore, a surprising phenomenon was observed
SUBSTITUTED N-ARYLETHYL-2-ARYLQUINOLINE-4-CARBOXAMIDES AND USE THEREOF
申请人:Bayer Aktiengesellschaft
公开号:US20200031775A1
公开(公告)日:2020-01-30
The present application relates to novel substituted N-arylethyl-2-arylquinoline-4-carboxamide derivatives, to processes for preparation thereof, to the use thereof alone or in combinations for treatment and/or prevention of diseases, and to the use thereof for production of medicaments for treatment and/or prevention of diseases, especially for treatment and/or prevention of fibrotic and inflammatory disorders.
Sustainable Alkylation of Nitriles with Alcohols by Manganese Catalysis
作者:Jannik C. Borghs、Mai Anh Tran、Jan Sklyaruk、Magnus Rueping、Osama El-Sepelgy
DOI:10.1021/acs.joc.9b00792
日期:2019.6.21
A general and chemoselective catalytic alkylation of nitriles using a homogeneous nonprecious manganese catalyst is presented. This alkylation reaction uses naturally abundant alcohols and readily available nitriles as coupling partners. The reaction tolerates a wide range of functional groups and heterocyclic moieties, efficiently providing useful cyanoalkylated products with water as the only side
thiocyanates to generate α-arylthioalkanenitriles bearing sulfur-substituted quaternarycarboncenter atoms has been described. This novel protocol involves the procedure of copper carbene species promoting S–CN bond cleavage and C–CN/C–S bond reconstruction to introduce both sulfur and cyano groups onto a single carboncenter. This cyanothiolation reaction will greatly enhance the synthetic utility of