Mechanism of tin(IV)-catalysed urethane formation

被引：53

作者：

Houghton, RP

Mulvaney, AW

机构：

[1] Department of Chemistry, University of Wales Cardiff

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1996年 / 518卷 / 1-2期

关键词：

tin carboxylates; tin thiolates; urethane formation;

D O I：

10.1016/0022-328X(96)06223-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

It has been found that dibutyltin dilaurate and dibutyltin dibutanethiolate are almost equally effective as catalysts in the formation of a urethane from phenyl isocyanate and butanol, and that the catalytic activity of both compounds is inhibited by thiols. These results are consistent with a mechanism which involves the N-coordination of the isocyanate with a tin alkoxide that is formed by alcoholysis of the starting tin compound.

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页码：21 / 27

页数：7

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