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公开(公告)号:US06175041B1
公开(公告)日:2001-01-16
申请号:US09521009
申请日:2000-03-07
申请人: Seiji Takasaki , Takahiro Koizumi , Takashi Kume , Michio Ishida , Satoru Narizuka , Eri Tsukada
发明人: Seiji Takasaki , Takahiro Koizumi , Takashi Kume , Michio Ishida , Satoru Narizuka , Eri Tsukada
IPC分类号: C07C20900
CPC分类号: C07C209/48 , C07C211/29
摘要: The invention relates to a process for producing a trifluoromethylbenzylamine represented by the following general formula (1). This process includes hydrogenating a trifliuoromethylbenzonitrile represented by the following general formula (2) by hydrogen in an organic solvent in the presence of ammonia, using a Raney catalyst, where each R independently represents a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine, an alkyl group having a carbon atom number of 1-4, an alkoxy group having a carbon atom number of 1-4, an amino group, a hydroxyl group or a trifluoromethyl group, and n represents an integer from 0 to 4, where R and n are defined as above. With this process, it is possible to obtain the trifluoromethylbenzylamine easily and inexpensively at an extremely high yield.
摘要翻译: 本发明涉及一种由以下通式(1)表示的三氟甲基苄胺的制备方法。 该方法包括使用阮内催化剂,在氨的存在下,在有机溶剂中,用氢气氢化由以下通式(2)表示的三氟甲基苄腈,其中每个R独立地表示选自氟,氯,溴的卤素 和碘,碳原子数为1-4的烷基,碳原子数为1-4的烷氧基,氨基,羟基或三氟甲基,n为0-4的整数 其中R和n如上定义。 通过该方法,可以以极高的收率容易且廉价地得到三氟甲基苄基胺。
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公开(公告)号:US5739390A
公开(公告)日:1998-04-14
申请号:US532624
申请日:1996-01-16
申请人: Thaddeus Stephen Franczyk , Yukio Kadono , Norikazu Miyagawa , Seiji Takasaki , Hiroki Wakayama
发明人: Thaddeus Stephen Franczyk , Yukio Kadono , Norikazu Miyagawa , Seiji Takasaki , Hiroki Wakayama
IPC分类号: C07C227/02 , C07C229/08 , C07C229/16 , C07F9/38 , C07C51/23
CPC分类号: C07C227/02 , C07F9/3813
摘要: An improved process is discloses to prepare an amino carboxylic acid salt. According to the process an aqueous solution of an amino alcohol is contacted with an alkali metal hydroxide in the presence of an effective amount of Raney copper catalyst that has from about 10 parts per million of an element selected from the group consisting of bismuth, tin, antimony, lead, germanium and mixtures thereof.
摘要翻译: PCT No.PCT / US94 / 03770 Sec。 371日期1996年1月16日 102(e)日期1996年1月16日PCT 1994年4月6日PCT PCT。 出版物WO94 / 24091 日期:1994年10月27日公开了一种制备氨基羧酸盐的改进方法。 根据该方法,氨基醇的水溶液在有效量的阮内铜催化剂的存在下与碱金属氢氧化物接触,所述催化剂具有约10ppm的选自铋,锡, 锑,铅,锗及其混合物。
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