Mechanistic studies on the formal aza-Diels-Alder reactions of N-aryl imines:: evidence for the non-concertedness under Lewis-acid catalysed conditions

被引:72
作者
Hermitage, S
Howard, JAK
Jay, D
Pritchard, RG
Probert, MR
Whiting, A
机构
[1] Univ Durham, Dept Chem, Sci Labs, Durham DH1 3LE, England
[2] GlaxoSmithKline Med Res Ctr, Stevenage SG1 2NY, Herts, England
[3] Univ Manchester, Dept Chem, Manchester M60 1QD, Lancs, England
关键词
D O I
10.1039/b407293f
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The reaction of a para-methoxyaniline, ethyl glyoxalate-derived imine with a series of dienes has resulted in products, which initially suggest the operation of different modes of aza-Diels-Alder reaction. However, a more likely explanation is that a common reaction mechanism is operating, involving a step-wise Lewis-acid catalysed process, which only appears to behave similarly to alternative concerted cycloaddition reactions.
引用
收藏
页码:2451 / 2460
页数:10
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