ON THE [4+2]CYCLOADDITION APPROACH TO INDOLO[2,3-A]CARBAZOLES

被引：16

作者：

BARRY, JF

WALLACE, TW

WALSHE, NDA

机构：

[1] UNIV SALFORD,DEPT CHEM & APPL CHEM,SALFORD M5 4WT,LANCS,ENGLAND

[2] PFIZER LTD,DEPT ANIM HLTH CHEM,SANDWICH CT13 9NJ,KENT,ENGLAND

来源：

TETRAHEDRON LETTERS | 1993年 / 34卷 / 33期

关键词：

D O I：

10.1016/S0040-4039(00)73988-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

2,2'-Biindolyl 4 reacts with electron-deficient dienophiles at 100-110-degrees-C to give low to moderate yields of Michael addition and formal [4 + 2] cycloaddition products, with the former predominant; the products derived from 4 and 2-(phenylsulphinyl)maleimides 7 and 8 undergo in situ elimination of benzenesulphenic acid, leading to 2,2'-biindolyl-substituted maleimides which can be efficiently photocyclised into indolo[2,3-a]carbazoles.

引用

页码：5329 / 5330

页数：2

共 16 条

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