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低价钛试剂促进下2-(2-硝基苯基)咪唑与席夫碱的反应
引用本文:窦国兰,仲晓星,王德明,史达清.低价钛试剂促进下2-(2-硝基苯基)咪唑与席夫碱的反应[J].有机化学,2011,31(11).
作者姓名:窦国兰  仲晓星  王德明  史达清
作者单位:1. 中国矿业大学安全工程学院 徐州221116
2. 苏州大学材料与化学化工学部 苏州215123
基金项目:中央高校基本科研业务费专项资金
摘    要:在低价钛试剂作用下,以四氢呋喃为溶剂,研究了2-(2-硝基苯基)咪唑与席夫碱的分子间还原偶联反应.结果发现席夫碱中C-N键的断裂优于其与硝基的偶联成环,生成了5,6-二氢化咪唑并1,2-c]喹唑啉.

关 键 词:低价钛试剂  2-(2-硝基苯基)咪唑  席夫碱

A Novel Reaction of 2-(2-Nitrophenyl)imidazole with Schiff Base Promoted by Low-Valent Titanium Reagent
Dou, Guolan,Zhong, Xiaoxing,Wang, Deming,Shi, Daqing.A Novel Reaction of 2-(2-Nitrophenyl)imidazole with Schiff Base Promoted by Low-Valent Titanium Reagent[J].Chinese Journal of Organic Chemistry,2011,31(11).
Authors:Dou  Guolan  Zhong  Xiaoxing  Wang  Deming  Shi  Daqing
Institution:Dou,Guolana Zhong,Xiaoxinga Wang,Deming a Shi,Daqingb(a School of Safety Engineering,China University of Mining and Technology,Xuzhou 221116)(b Key Laboratory of Organic Synthesis of Jiangsu Province,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123)
Abstract:The intermolecular reductive cyclodimerizations of 2-(2-nitrophenyl)imidazoles with Schiff bases induced by low-valent titanium reagent in anhydrous THF were studied.The cleavage of C=N bond is superior to coupling of 2-(2-nitrophenyl)imidazoles with Schiff base.Thus,5,6-dihydroimidazo-quinazolines were obtained in good yields.
Keywords:low-valent titanium  2-(2-nitrophenyl)imidazole  Schiff base  
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