Regioselectivity of reductive-coupling reaction of ethynes in the presence of titanocene and zirconocene dichloride

Acta Chimica Sinica ›› 1987, Vol. 45 ›› Issue (4): 365-369. Previous Articles Next Articles

Original Articles

Cp2TiCl2及Cp2ZrCl2存在下炔烃还原偶联反应的区域选择性

刘以寅

南开大学元素有机化学研究所

发布日期:1987-04-15

Regioselectivity of reductive-coupling reaction of ethynes in the presence of titanocene and zirconocene dichloride

LIU YIYIN

Published:1987-04-15

Abstract

A series of (Z,Z)-tetraaryl-1,3-butadienes has been synthesized stereospecifically and regioselectively by acidolysis of five-membered Ti, Zr metallocycles formed from asym. substituted ethynes. E.g., stirring 4-MeC6H4CYCPh with zirconocene dichloride and sodium in THF gave 63% butadienes I and II (I/II = 95/5).

Key words: CHLORIDE, CYCLOPENTADIENE P, COUPLING REACTION, ALKYNE P, METALLOCENES, REDUCTION REACTION, TITANIUM COMPLEX, ARYL GROUP, BUTADIENE P, ZIRCONIUM COMPLEX

CLC Number:

O627

Cite this article

LIU YIYIN. Regioselectivity of reductive-coupling reaction of ethynes in the presence of titanocene and zirconocene dichloride[J]. Acta Chimica Sinica, 1987, 45(4): 365-369.

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Cp2TiCl2及Cp2ZrCl2存在下炔烃还原偶联反应的区域选择性

Regioselectivity of reductive-coupling reaction of ethynes in the presence of titanocene and zirconocene dichloride

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