TOTAL CONTROL ON THE SYNTHESIS OF REGIO AND STEREOISOMERS OF VINYLIC TELLURIDES

被引：28

作者：

DABDOUB, MJ

CASSOL, TM

机构：

[1] Laboratório de Síntese, Compostos Organocalcogênios Departamento de Química, FFCLRP, Ribeirão Preto, SP, Av. Bandeirantes

来源：

TETRAHEDRON | 1995年 / 51卷 / 47期

关键词：

D O I：

10.1016/0040-4020(95)00840-5

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Methodologies for the total control on the synthesis of E, Z or 1,1-dissubstituted vinylic tellurides are described. Tellurobutadienes bearing the butyltellurium moiety at carbon 2 or at carbon 1 with E or Z configuration at the tellurium containing double bond were also obtained. Addition of diisobutylaluminum butyltellurolate to terminal alkynes resulted in the formation of 1-(butylteluro)-1-(organyl) ethenes in 45-75% yield. Al/Te exchange reaction on vinyl alanes with butyl tellurenyl bromide/LiCl furnished the isomers of E configuration in 50-60% yield. Vinylic tellurides of Z configuration at the double bond formed were obtained in 30-51% yield by the hydroalumination of acetylenic tellurides.

引用

页码：12971 / 12982

页数：12

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