Synthesis and Diels-Alder reactions of N-(tert-butoxycarbonyl)-3-p-tolylsulfinyl-1-benzoquinone-4-imine

被引:6
|
作者
Bartolome, JM [1 ]
Carreno, MC [1 ]
Urbano, A [1 ]
机构
[1] UNIV AUTONOMA MADRID,DEPT QUIM ORGAN CI,E-28049 MADRID,SPAIN
关键词
D O I
10.1016/0040-4039(96)00491-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The title compound was synthesized in 3 steps (regioselective sulfenylation, m-CPBA and Pb(OAc)(4) oxidations) from N-Boc-p-anisidine. Its Diels-Alder reactions with cyclopentadiene took place on the double bonds C-2-C-3 or C-5-C-6 depending upon the experimental conditions with total endo-selectivity and high pi-facial diastereoselectivity. The cycloaddition with trans-piperylene ocurred exclusively on the sulfinylsubstituted dienophilic double bond C-2-C-3. Copyright (C) 1996 Elsevier Science Ltd
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页码:3187 / 3190
页数:4
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