公开(公告)号：US20120035376A1

公开(公告)日：2012-02-09

申请号：US13197593

申请日：2011-08-03

申请人： Brian D. Mullen ,  Marc D. Scholten ,  Andrew J. Louwagie ,  Steven A. Donen ,  Feng Jing ,  Vivek Badarinarayana

发明人： Brian D. Mullen ,  Marc D. Scholten ,  Andrew J. Louwagie ,  Steven A. Donen ,  Feng Jing ,  Vivek Badarinarayana

IPC分类号： C07D317/30

CPC分类号： C07D317/30 ,  Y02P20/582

摘要： A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants.

摘要翻译： 用于生产包含乙酰乙酸乙酯乙酰丙酸乙酯或丙二醇缩酮的甘油缩酮的产物的方法包括在反应器系统中在均相或非均相催化剂体系存在下使甘油或丙二醇与乙酰乙酸乙酯反应。 将乙酰乙酸乙酯和甘油或丙二醇加热以除去水，多元醇和过量乙酰乙酸乙酯。 过量的乙酰丙酸乙酯和多元醇再循环回到反应器中。 产物以特定方式蒸馏并任选地通过稳定剂或酸物质去除床处理，以获得组合物，其包含乙酰丙酸乙酯的乙酰丙酸乙酯或丙二醇缩酮的甘油缩酮，其中组合物包含小于或等于约 2重量％的污染物。