Reactions of cyclic oxalyl compounds .38. New Isoindigoide dyes from heterocyclic 2,3-diones - Synthesis and thermal rearrangement

被引：29

作者：

Kollenz, G ^{[1
]}

Penn, G ^{[1
]}

Theuer, R ^{[1
]}

Fabian, WMF ^{[1
]}

ElNabi, HAA ^{[1
]}

Zhang, X ^{[1
]}

Peters, K ^{[1
]}

Peters, EM ^{[1
]}

vonSchnering, HG ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-70506 STUTTGART 80,GERMANY

来源：

TETRAHEDRON | 1996年 / 52卷 / 15期

关键词：

D O I：

10.1016/0040-4020(96)00173-1

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The heterocyclic 2,3-diones 1 and 11 together with Lawesson reagent (LR) afford novel isoindigoide dyes 4 and 12, respectively. 4a can thermally be isomerized into the pyrano[4,3-c]pyrane 6, accompanied by a significant hypsochromic shift which,uas corroborated by quantum chemical calculations. The phoshporanylidene derivative 13 was obtained via Wittig reaction of 1. All structural assignments were based on X-ray studies of 4a and 13. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：5427 / 5440

页数：14

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