Synthesis of carbamates and ureas using Zr(IV)-catalyzed exchange processes.
Synthesis of carbamates and ureas using Zr(IV)-catalyzed exchange processes.
复制标题
DOI：
10.1002/chin.200735046
复制
发表时间：
2007-08
期刊：
影响因子：
5.2
通讯作者：
Chong Han;J. Porco
中科院分区：
文献类型：
--
作者：
Chong Han;J. Porco
[反应：锆（IV）催化的交换方法已经被开发出来，分别使用2-羟基吡啶（HYP）和4-甲基-2-羟基喹啉（MeHYQ）作为催化添加剂，由碳酸二烷基酯和氨基甲酸二烷基酯制备氨基甲酸酯和脲。在Zr（IV）催化的氨基甲酸酯-尿素交换反应中观察到微波加速效应。
[reaction: see text] Zirconium(IV)-catalyzed exchange processes have been developed to prepare both carbamates and ureas from dialkyl carbonates and carbamates employing 2-hydroxypyridine (HYP) and 4-methyl-2-hydroxyquinoline (MeHYQ) as catalytic additives, respectively. A microwave acceleration effect was observed in Zr(IV)-catalyzed carbamate-urea exchange.