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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