Transition-metal-catalyzed process for the preparation of sterically hindered N-substituted alkoxy amines
申请人:——
公开号:US20030000129A1
公开(公告)日:2003-01-02
Sterically hindered N-substituted alkoxyamines are prepared by the transition-metal-catalyzed decomposition of diazonium salts in the presence of a sterically hindered nitroxyl radical. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.
Simple Tandem Olefin Isomerization/Intramolecular Hydroamination of Alkenyl Amines with Various Allylic Tethers
作者:Young Ho Kim、Dong Bin Kim、So Won Youn
DOI:10.1021/acs.joc.2c01640
日期:2022.9.2
A simple and efficient AgOTf-promoted tandem olefin isomerization/intramolecular hydroamination of 1,1-disubstituted alkenyl amines has been developed. This one-pot process represents a facile and attractive route for the synthesis of diverse 2-alkyl-substituted 1,3-X,N-heterocycles through chemo- and regioselective C(sp3)–N bondformation with atom economy. Advantages such as the operationally simple
TRANSITION-METAL-CATALYZED PROCESS FOR THE PREPARATION OF STERICALLY HINDERED N-SUBSTITUTED ALKOXYAMINES
申请人:Ciba Specialty Chemicals Holding Inc.
公开号:EP1377564A2
公开(公告)日:2004-01-07
US6547841B2
申请人:——
公开号:US6547841B2
公开(公告)日:2003-04-15
[EN] TRANSITION-METAL-CATALYZED PROCESS FOR THE PREPARATION OF STERICALLY HINDERED N-SUBSTITUTED ALKOXYAMINES<br/>[FR] PROCESSUS CATALYSE PAR UN METAL DE TRANSITION POUR LA PREPARATION D'ALCOXYAMINES N-SUBSTITUEES ET STERIQUEMENT ENCOMBREES
申请人:CIBA SC HOLDING AG
公开号:WO2002079182A2
公开(公告)日:2002-10-10
Sterically hindered N-substituted alkoxyamines are prepared by the transition-metal-catalyzed decomposition of diazonium salts in the presence of a sterically hindered nitroxyl radical. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.