LEWIS ACID-CATALYZED OR BASE-CATALYZED DOUBLE RING-CLOSURE OF DIACETYLENIC COMPOUNDS WITH ACTIVATED OLEFINS

被引：2

作者：

ZHOU, ZM ^{[1
]}

COSTA, M ^{[1
]}

CHIUSOLI, GP ^{[1
]}

机构：

[1] UNIV PARMA,IST CHIM ORGAN,VIALE SCI,I-43100 PARMA,ITALY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1992年 / 11期

关键词：

D O I：

10.1039/p19920001407

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Conformationally rigid 1,6- or 1,7-dialkynes, terminally substituted with one or two alkyl groups, react with activated olefins in the presence of Lewis acids or bases to give a double ring closure to alkylidenecyclohexene compounds. The new reaction involves isomerization of the dialkyne to a cyclic ene-allene, which in its turn reacts with activated olefins regioselectively to give condensed rings.

引用

页码：1407 / 1413

页数：7

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