New thermal rearrangements of vinylogous ketoketenes and related intermediates

被引：2

作者：

Cartwright, GA ^{[1
]}

Gould, RO ^{[1
]}

McNab, H ^{[1
]}

机构：

[1] UNIV EDINBURGH,DEPT CHEM,EDINBURGH EH9 3JJ,MIDLOTHIAN,SCOTLAND

来源：

CHEMICAL COMMUNICATIONS | 1997年 / 14期

关键词：

D O I：

10.1039/a702395b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

2-Oxopyran-5-carbaldehydes (e,g, 3) containing a trapping group in the 5-position rearrange thermally by a sequence involving electrocyclic ring opening, E/Z isomerisation and ring closure; a similar strategy has enabled the first cases of thermal interconversion of pyran-2-ones and 2-pyridones, and of automerisation of 2-pyridones to be identified.

引用

页码：1293 / 1294

页数：2

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