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2. 发明授权

US06844468B2 Process for preparing substituted benzoyl chlorides 有权
标题翻译：制备取代苯甲酰氯的方法
公开(公告)号：US06844468B2
公开(公告)日：2005-01-18
申请号：US10264086
申请日：2002-10-03
申请人： Lars Bierer , Joachim Ritzer , Berthold Schiemenz , Thomas Wessel
发明人： Lars Bierer , Joachim Ritzer , Berthold Schiemenz , Thomas Wessel
IPC分类号： C07C51/58
CPC分类号： C07C51/58 , C07C63/70
摘要： The present invention relates to a process for preparing substituted benzoyl chlorides of the formula (1) where R, x and y have the meaning given below, which comprises reacting a benzaldehyde of the formula (2) where R, independently of each other, is identical or different and is an unsubstituted phenyl radical or a phenyl radical that is substituted by halogen, NO2, CN, (C1-C4)alkyl or (C1-C4)alkoxy, or is halogen, NO2, CN, NR′2, OR′, SO2R′, SO2OR′, COR′ or CO2R′, where R′ is an unbranched or branched C1-C10 alkyl radical, an unsubstituted phenyl radical or a phenyl radical which is substituted by halogen, NO2, CN, (C1-C4)alkyl or (C1-C4)alkoxy, x is 1 or 2 and y is 1, 2 or 3, with a chlorinating agent in the presence of a free-radical initiator and a solvent at from −20 to +200° C.
摘要翻译：本发明涉及一种制备式（1）的取代的苯甲酰氯的方法，其中R，x和y具有以下含义，其包括使式（2）的苯甲醛与其中R彼此独立地为相同或不同，是未取代的苯基或被卤素，NO 2，CN，（C 1 -C 4）烷基或（C 1 -C 4）烷氧基取代的苯基，或者是卤素，NO 2，CN，NR' '，SO 2 R'，SO 2 OR'，COR'或CO 2 R'，其中R'是无支链或支链的C1-C10烷基，未取代的苯基或被卤素，NO2，CN，（C1-C4）取代的苯基）烷基或（C 1 -C 4）烷氧基，x为1或2，y为1,2或3，在自由基引发剂和溶剂为-20至+ 200℃的情况下与氯化剂反应。

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