Copper(II) Acetate/Oxygen-Mediated Nucleophilic Addition and Intramolecular CH Activation/CN or CC Bond Formation: One-Pot Synthesis of Benzimidazoles or Quinazolines
作者:Hua-Feng He、Zhi-Jing Wang、Weiliang Bao
DOI:10.1002/adsc.201000469
日期:2010.11.22
Diarylcarbodiimides or benzylphenylcarbodiimides are converted to 1,2-disubstituted benzimidazoles or 1,2-disustituted quinazolines via addition/intramolecular CH bondactivation/C-N or CC bond forming reaction using copper(II) acetate/oxygen [Cu(OAc)2/O2] as the oxidant at 100 °C in one-pot cascade procedure.
使用乙酸铜(II)/氧[Cu(OAc)2 / O 2)通过加成/分子内CH键活化/ CN或CC键形成反应将二芳基碳二亚胺或苄基苯基碳二亚胺转化为1,2-二取代的苯并咪唑或1,2-取代的喹唑啉以一锅级联程序在100°C下作为氧化剂。
Indukumari, P. V.; Joshua, C. P., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1980, vol. 19, # 8, p. 672 - 675
作者:Indukumari, P. V.、Joshua, C. P.
DOI:——
日期:——
Synthesis of 2-amino-1,4-dihydro-4-quinolinones and diaminomethylene meldrum's acids derivatives as potential potassium channel openers
Starting from 5-bismethylthiomethylene Meldrum'sacid, the synthesis of 5-diaminomethylene Meldrum'sacids and 2-aminoquinolone derivatives, structurally related to potassiumchannelsopeners pinacidil and diazoxide, is described.