REACTION OF DIALDEHYDES WITH CONVENTIONAL AND POLYMER-SUPPORTED WITTIG REAGENTS

被引：34

作者：

CASTELLS, J ^{[1
]}

FONT, J ^{[1
]}

VIRGILI, A ^{[1
]}

机构：

[1] UNIV AUTONOMA BARCELONA,FAC CIENCIAS,DEPT QUIM ORGAN,BARCELONA 16,SPAIN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1979年 / 01期

关键词：

D O I：

10.1039/p19790000001

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Olefinizations carried out under a variety of conditions, using a 1 : 1 molar ratio of polymer-supported Wittig reagent to dialdehyde (terephthalaldehyde and isophthalaldehyde), lead exclusively to monocondensation products. Results in conventional reactions, depend on the particular Wittig reagent employed, the procedure used, and the halide counterion which is present; when using ethylene oxide as base, chloride ion favours mono-olefinizations. In solid phase Wittig reactions, with ethylene oxide as base and bromide as the counterion, monoethylene acetal formation becomes an important by-reaction.

引用

页码：1 / 6

页数：6

共 28 条

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