Copper Salt Catalyzed Coupling of Organobismuth Reagents and Azo Compounds
作者:Uno Mäeorg、Olga Tšubrik、Ksenija Kisseljova
DOI:10.1055/s-2006-950408
日期:2006.9
A new copper salt catalyzed C-N coupling is described. This smooth reaction between azo compounds and organobismuth reagents provides efficient and highly regioselective access to Boc-protected aryl hydrazines. The yields under optimized conditions are mostly excellent and the synthetic procedure is robust and simple.
Synthesis of Diprotected Monosubstituted Hydrazine Derivatives from <i>tert-</i>Butyl Carbazates and Boronic Acids
作者:George W. Kabalka、Sankar K. Guchhait
DOI:10.1021/ol035544v
日期:2003.10.1
[reaction: see text]. Diprotected monosubstituted hydrazine derivatives have been prepared via the reaction of tert-butyl carbazates with boronic acids catalyzed by cuprouschloride at room temperature.
Amination of Arylboronic Compounds via the Copper-Catalyzed Addition of Arylboronic Esters to Azodicarboxylates
作者:Naoto Chatani、Takeshi Uemura、Mao Yamaguchi
DOI:10.1055/s-0035-1560468
日期:——
Abstract Arylboronic esters add to di-tert-butyl azodicarboxylate under mild reaction conditions (at room temperature) to afford aryl-substituted hydrazine derivatives in good yields. The reaction tolerates a wide variety of functional groups. Arylboronic esters add to di-tert-butyl azodicarboxylate under mild reaction conditions (at room temperature) to afford aryl-substituted hydrazine derivatives
Copper Salt Catalyzed Addition of Arylboronic Acids to Azodicarboxylates
作者:Takeshi Uemura、Naoto Chatani
DOI:10.1021/jo051387x
日期:2005.10.1
[GRAPHIC]The addition of arylboronic acids 1 to azodicarboxylates 2 in the presence of a catalytic amount of a copper salt under mild reaction conditions gives aryl-substituted hydrazines 3 in high yields. The reaction is tolerant of a wide variety of functional groups.