A catalyst system for the formation of amides by reaction of carboxylic acids with blocked isocyanates

被引：21
|
作者：
Gertzmann, R [1 ]
Gürfler, C [1 ]
机构：
[1] Bayer Mat Sci AG, Innovat Business Unit Coatings Adhes & Sealants, D-51368 Leverkusen, Germany
来源：
TETRAHEDRON LETTERS | 2005年 / 46卷 / 39期
关键词：
blocked isocyanate; amide; magnesium salts; catalyst screening;
D O I：
10.1016/j.tetlet.2005.07.156
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A catalyst for the reaction of blocked isocyanates (blocking agent diisopropylamine and dimethyl pyrazole) and carboxylic acids was identified. Magnesium and in some instances calcium salts proved to be highly active as catalyst. This reaction gives amides in quantitative yield and excellent selectivity and is suitable for coating and general chemical purposes. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6659 / 6662
页数：4
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