NOVEL CATALYTIC EFFECT OF LEAD ON THE REDUCTION OF A ZINC CARBENOID WITH ZINC METAL LEADING TO A GEMINAL DIZINC COMPOUND - ACCELERATION OF THE WITTIG-TYPE OLEFINATION WITH THE RCHX(2)-TICL4-ZN SYSTEMS BY ADDITION OF LEAD

被引：242

作者：

TAKAI, K ^{[1
]}

KAKIUCHI, T ^{[1
]}

KATAOKA, Y ^{[1
]}

UTIMOTO, K ^{[1
]}

机构：

[1] KYOTO UNIV,FAC ENGN,DIV MAT CHEM,KYOTO 60601,JAPAN

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1994年 / 59卷 / 10期

关键词：

D O I：

10.1021/jo00089a002

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A catalytic amount of lead promotes further reduction of zinc carbenoid (ICH2ZnI) with zinc in THF to give a geminal dizinc compound (CH2(ZnI)(2)), which is a key intermediate for the methylenation of carbonyl compounds with a CH2I2, zinc, and TiC4 system.

引用

页码：2668 / 2670

页数：3

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