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公开(公告)号：US5760265A
公开(公告)日：1998-06-02
申请号：US611162
申请日：1996-03-05
IPC分类号： B01J31/04 , C07B61/00 , C07B63/02 , C07C67/08 , C07C67/60 , C07C69/24 , C07C69/44 , C07C69/50 , C07C69/58 , C07C69/80 , C07C67/14 , C07F7/28
CPC分类号： C07C67/08
摘要： The present invention provides a process for preparation of an ester comprising reacting a carboxylic acid and an alcohol in the presence of an esterific catalyst comprising at least one compound selected from the group consisting of halides, nitrates, carboxylates, alcoholates and acetylacetone complexes of metals of the titanium group. According to the present process, substantially equal equivalent of the alcohol and the acid can be reacted completely. In addition, the present invention further provides a purification process to eliminate the catalyst from homogeneous reaction system completely.
摘要翻译： 本发明提供了一种制备酯的方法，包括使羧酸和醇在含有至少一种选自卤化物，硝酸盐，羧酸盐，醇盐和乙酰丙酮络合物的化合物存在下反应， 钛组。 根据本方法，基本上相当于醇和酸的当量可以完全反应。 此外，本发明还提供了从均匀的反应体系中完全除去催化剂的纯化方法。
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公开(公告)号：US5898077A
公开(公告)日：1999-04-27
申请号：US944549
申请日：1997-10-07
摘要： The present invention provides a process for preparing an ester comprising the step of reacting a carboxylic acid and an alcohol in the presence of an esterifying catalyst comprising at least one compound having the formula:O.dbd.M(RCOO).sub.2 wherein M represents Sn or Zn and R represents a saturated or unsaturated hydrocarbon group having 1-21 carbon atoms with or without side chains. According to the present process, substantially equal equivalents of the alcohol and the acid can be reacted completely. In addition, the present invention further provides a purification process to eliminate the catalyst from a homogeneous reaction system completely.
摘要翻译： 本发明提供一种制备酯的方法，包括使羧酸和醇在含有至少一种具有下式的化合物的酯化催化剂存在下反应的步骤：其中M代表Sn或Zn R表示具有或不具有侧链的具有1-21个碳原子的饱和或不饱和烃基。 根据本方法，可以完全反应基本上相等当量的醇和酸。 此外，本发明还提供了从均匀的反应体系中完全除去催化剂的纯化方法。
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