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公开(公告)号:US20050222450A1
公开(公告)日:2005-10-06
申请号:US10816586
申请日:2004-03-31
IPC分类号: C07C269/04 , C07C271/12 , C07C271/24 , C07C271/28 , C07C271/58
CPC分类号: C07C269/04 , C07C271/12 , C07C271/24 , C07C271/28 , C07C271/58
摘要: A process for the preparation of carbamates from organic urea and organic carbonate in presence of a solid base catalyst is disclosed. The process works at the milder reaction conditions and utilizes inexpensive catalysts that can be recycled several times.
摘要翻译: 公开了一种在固体碱催化剂存在下由有机脲和有机碳酸酯制备氨基甲酸酯的方法。 该工艺在较温和的反应条件下工作,并且可以使用可再循环数次的廉价催化剂。