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公开(公告)号：US20060009659A1
公开(公告)日：2006-01-12
申请号：US10535710
申请日：2003-12-01
申请人： Volker Maywald , Nico Hoffmann , Michael Keil , Uwe Vogelbacher , Jan Wevers
发明人： Volker Maywald , Nico Hoffmann , Michael Keil , Uwe Vogelbacher , Jan Wevers
IPC分类号： C07C45/46
摘要： A process for preparing benzophenones of the formula I, where X may be chlorine, hydroxyl, methoxy or C1-C6-alkylcarbonyloxy, and Y may be chlorine or bromine, by reacting an acid chloride of the formula II where X and Y are as defined above with 3,4,5-trimethoxytoluene, which comprises carrying out the reaction in the presence of a) an aromatic hydrocarbon as a diluent and b) from 0.01 to 0.2 mol % of an iron catalyst, based on the acid chloride, c) at a temperature between 60° C. and the boiling point of the particular diluent.
摘要翻译： 制备式I的二苯甲酮的方法，其中X可以是氯，羟基，甲氧基或C 1 -C 6 - 烷基羰氧基，Y可以是氯或溴， 通过使式II的酰氯与其中X和Y如上所定义的酰氯与3,4,5-三甲氧基甲苯反应，其包括在a）芳族烃作为稀释剂存在下进行反应，和b）从0.01至 0.2mol％的铁催化剂，基于酰氯，c）在60℃和特定稀释剂的沸点之间的温度下。
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公开(公告)号：US07253323B2
公开(公告)日：2007-08-07
申请号：US10535710
申请日：2003-12-01
IPC分类号： C07C45/00
摘要： A process for preparing benzophenones of the formula I, where X may be chlorine, hydroxyl, methoxy or C1-C6-alkylcarbonyloxy, and Y may be chlorine or bromine, by reacting an acid chloride of the formula II where X and Y are as defined above with 3,4,5-trimethoxytoluene, which comprises carrying out the reaction in the presence of a) an aromatic hydrocarbon as a diluent and b) from 0.01 to 0.2 mol % of an iron catalyst, based on the acid chloride, c) at a temperature between 60° C. and the boiling point of the particular diluent.
摘要翻译： 制备式I的二苯甲酮的方法，其中X可以是氯，羟基，甲氧基或C 1 -C 6 - 烷基羰氧基，Y可以是氯或溴， 通过使式II的酰氯与其中X和Y如上所定义的酰氯与3,4,5-三甲氧基甲苯反应，其包括在a）芳族烃作为稀释剂存在下进行反应，和b）从0.01至 0.2mol％的铁催化剂，基于酰氯，c）在60℃和特定稀释剂的沸点之间的温度下。
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