A catalyst system for the reaction of carboxylic acids with aliphatic isocyanates
作者:C. Gürtler、K. Danielmeier
DOI:10.1016/j.tetlet.2004.02.012
日期:2004.3
Catalysts have been found for the selective reaction of aliphatic isocyanates with carboxylic acids giving amides after carbon dioxide extrusion. Magnesium and calcium salts lead to a dramatic increase in reaction rates while improving the selectivity when sterically hindered isocyanates and/or carboxylic acids are used.
已发现在二氧化碳挤出后,脂族异氰酸酯与羧酸选择性反应生成酰胺的催化剂。当使用空间受阻的异氰酸酯和/或羧酸时,镁和钙盐可导致反应速率显着提高,同时提高了选择性。