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2-取代的6-溴甲基-4(3H)-喹唑啉酮的合成
引用本文:曹胜利,冯玉萍,高红核,冯克然.2-取代的6-溴甲基-4(3H)-喹唑啉酮的合成[J].应用化学,2005,22(9):1027-1029.
作者姓名:曹胜利  冯玉萍  高红核  冯克然
作者单位:a首都师范大学,清华大学
基金项目:北京市自然科学基金资助项目(7002006,7042006),教育部科学技术研究重点项目(2002KJ091)
摘    要:2-取代的6-溴甲基-4(3H)-喹唑啉酮的合成;4(3H)-喹唑啉酮;苯并噁嗪酮;N-溴代琥珀酰亚胺; 合成

关 键 词:2-取代的6-溴甲基-4(3H)-喹唑啉酮的合成  4(3H)-喹唑啉酮  苯并噁嗪酮  N-溴代琥珀酰亚胺  合成  
文章编号:1000-0518(2005)09-1027-03
收稿时间:2009-06-29
修稿时间:2004年11月6日

Syntheses of 2-Substituted 6-Bromomethyl-4 (3H) -Quinazolinones
CAO Sheng-Li,FENG Yu-Ping,GAO Hong-He,FENG Ke-Ran.Syntheses of 2-Substituted 6-Bromomethyl-4 (3H) -Quinazolinones[J].Chinese Journal of Applied Chemistry,2005,22(9):1027-1029.
Authors:CAO Sheng-Li  FENG Yu-Ping  GAO Hong-He  FENG Ke-Ran
Institution:CAO Sheng-Li~
Abstract:2-Amino-5-methylbenzoic acid(1) was acylated with acyl chlorides,then heated(together) with(acetic) anhydride to give 2-phenyl or 2-benzyl-6-methylbenzoxazin-4-one(3a~3b),while compound 1 was (reacted) with propanoic anhydride or trifluoroacetic anhydride to give 2-ethyl or 2-trifluoromethyl-6-methylbenzoxazin-4-one(3c~3d) directly. Then,2-substituted 6-methylbenzoxazin-4-ones(3a~3d) were heated together with formamide to afford 2-substituted 6-methyl-4(3H)-quinazolinones(4a~4d),which were(converted) into the title compounds(5a~5d) via brominating with N-bromosuccinimide in the presence of (PhCOO)_(2).The structures of all the intermediates and final products were confirmed with ESI-MS,~(1)H NMR and elemental analysis.
Keywords:4(3H)-quinazolinone  benzoxazinone  N-bromosuccinimide  synthesis
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