Tandem [4+2] cycloaddition versus electrocyclisation reactions of 1-aryl-2-phenyl-5-alkyl/aryl-1,3-diazapenta-1,3,4-trienes in aza-Wittig reactions of N′-aryl-N-(triphenylphosphoranlidene)benzenecarboximidamides with ketenes

被引：10

作者：

Jayakumar, S ^{[1
]}

Kumar, V ^{[1
]}

Mahajan, MP ^{[1
]}

机构：

[1] Guru Nanak Dev Univ, Dept Pharmaceut Sci, Amritsar 143005, Punjab, India

来源：

TETRAHEDRON LETTERS | 2001年 / 42卷 / 11期

关键词：

D O I：

10.1016/S0040-4039(01)00119-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

1-Aryl-2-phenyl-5-alkyl/aryl-1,3-diazapenta-1,3,4-triene 3 generated in situ aza-Wittig reactions of N'-aryl-N-(triphenylphosphoranylidene)carboximidamides 1 which are shown to undergo selective [4+2] cycloaddition and electrocyclisation reactions leading to the formation of novel pyrimidinone derivatives 5 and quinazoline derivatives 7 with monosubstituted ketenes and diphenylketene, respectively. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：2235 / 2237

页数：3

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