A Facile Synthesis of Azidoformate<i>via</i>Chloroformate
作者:Pei-Lin Wu、Chia-Hao Su、Yi-Jeng Gu
DOI:10.1002/jccs.200000033
日期:2000.2
This work synthesized chloroformates by slowly adding alcohols into a suspension of trichloromethyl chloroformate, instead of phosgene, along with activated charcoal in tetrahydrofuran. This chloroformylation yielded chloroformates in near quantitative yield. The subsequent reaction between chloroformates and sodium azide in dry acetone produced azidoformates in a high yield.
PROCESS FOR PRODUCING NITROGENOUS HETEROCYCLIC COMPOUND
申请人:Toray Fine Chemicals Co., Ltd.
公开号:EP1640364A1
公开(公告)日:2006-03-29
A nitrogenous heterocyclic compound such as 3-aminopyrrolidine derivative is produced by hydrogenolysis of an N-substituted nitrogenous heterocyclic compound with normal pressure hydrogen in a water-based solvent in presence of a catalyst. In the case an optically active 1-substituted-3-aminopyrrrolidine derivative is used as a raw material, an optically active 3-aminopyrrolidine derivative can be obtained as a product practically without racemination.
[EN] PROCESSES AND INTERMEDIATES FOR PREPARING MCL1 INHIBITORS<br/>[FR] PROCÉDÉS ET INTERMÉDIAIRES POUR LA PRÉPARATION D'INHIBITEURS DE MCL1
申请人:GILEAD SCIENCES INC
公开号:WO2021108254A1
公开(公告)日:2021-06-03
The present disclosure provides methods for preparing MCL1 inhibitors or a salt thereof and related key intermediates.
本公开提供了制备MCL1抑制剂或其盐及相关关键中间体的方法。
Process for producing nitrogenous heterocyclic compound
申请人:Morii Seiji
公开号:US20060270847A1
公开(公告)日:2006-11-30
A nitrogenous heterocyclic compound such as 3-aminopyrrolidine derivative is produced by hydrogenolysis of an N-substituted nitrogenous heterocyclic compound with normal pressure hydrogen in a water-based solvent in presence of a catalyst. In the case an optically active 1-substituted-3-aminopyrrrolidine derivative is used as a raw material, an optically active 3-aminopyrrolidine derivative can be obtained as a product practically without racemination.
CELLULOSE RESIN AND PROCESS FOR PRODUCING THE SAME
申请人:Tanaka Shukichi
公开号:US20140024824A1
公开(公告)日:2014-01-23
A cellulose resin produced by binding cellulose or a derivative thereof and cardanol or a derivative thereof by using a hydroxy group of the cellulose or a derivative thereof and a hydroxy group of the cardanol or a derivative thereof, in which carbon atoms to which the hydroxy groups are bound are mutually linked via a carbonate bond or urethane bond formed by using the hydroxy groups.