New synthesis of heterocycles via palladium-catalyzed double carbonylation of cyclic alk-1-ynyl carbonates

被引：0
|
作者：
Darcel, C
Bruneau, C
Dixneuf, FH
机构：
来源：
SYNLETT | 1996年 / 03期
关键词：
palladium catalysis; carbonylation; allenes; oxolenones; heterobicycles; cyclic alkynyl carbonates;
D O I：
暂无
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Carbonylation of cyclic alkynyl carbonates in the presence of a palladium(0) catalyst gives functional 5-hydroxyalka-2,3-dienoates in one step via zwitterionic allenylpalladium intermediates. From 3-en-1-ynyl cyclic carbonates, double vicinal carbonylation takes place to selectively afford oxolenones or 4-oxabicyclo[4.3.0]-nona-5,9-dien-2,7-diones.
引用
收藏
页码：218 / &
页数：4
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