OPTICALLY ACTIVE CARBAMATES, PROCESS FOR PREPARATION THEREOF AND USE THEREOF AS PHARMACEUTICAL INTERMEDIATES
申请人:Mezei Tibor
公开号:US20090221823A1
公开(公告)日:2009-09-03
The present invention is related to 1-[(4-chlorophenyl)-phenylmethyl]-4-(2,2,2-trichloroethoxycarbonyl)-piperazine of the Formula (IV) and optically isomers thereof, process for preparation thereof and the use of the compound of the Formula (IV) in the preparation of 1-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers and salts thereof. 1-(4-chlorophenyl)-phenylmethyl-piperazine and optical isomers thereof are important intermediates in the preparation of non-sedating antihistamine-type active pharmaceutical ingredients.
Electrohydrogenation of Nitriles with Amines by Cobalt Catalysis
作者:Tiantian Wang、Fangfang He、Wei Jiang、Jie Liu
DOI:10.1002/anie.202316140
日期:2024.2.12
efficient electrocatalytic method for earth-abundant cobalt hydride generation through a sequence of cathodic reduction and protonation. The application of this molecular cobalt catalyst allows for electroreductive amination of nitriles to produce various secondary and tertiaryamines, as well as deuterium isotope labeling applications from readily available deuterium source.