The Application of Ceric Ammonium Nitrate in the Synthesis of Carbodiazones
作者:Jun-Ping Xiao、Yu-Lu Wang、Xue-Shun Jia、Xiao-Yang Wang、Hong Wang
DOI:10.1080/00397910008087226
日期:2000.4
Abstract The preparation of bisaryl carbodiazone compounds from the aryl substituted carbazides with CericAmmoniumNitrate (CAN) has been reported for the first time in excellent yields (80-91%). This method only needs simple instruments and short reaction time. A possible mechanism has been suggested.
The Synthesis of New Type Bisazo Compounds Using 4-Hydroxy-2,2,6,6-Tetramethyl-l-Piperidinyloxyl as The Phase-Transfer Dehydrogenation Catalyst
作者:Xiao-Yang Wang、Yu-Lu Wang、Zi-Yi Zhang、Jian-Ping Li、Cai-Lan Wang
DOI:10.1002/jccs.199800127
日期:1998.12
AbstractUsing 4‐hydroxy‐2, 2, 6, 6‐tetramethyl‐l ‐piperidinyloxyl as the phase‐transfer dehydrogenation catalyst to prepare bisazo compounds is reported for the first time. Nine bisaryl carbodiazones were synthesized in high yields under mild conditions. This method was efficient, convenient and rapid. A possible mechanism was suggested by a nitroxide free radical which acted on aryl substituted carbazides to form azo compounds.