Production methods of citalopram and intermediates therefor
申请人:Ikemoto Tetsuya
公开号:US20050080278A1
公开(公告)日:2005-04-14
The present invention provides a production method of citalopram and intermediates therefor.
本发明提供了西酞普兰及其中间体的生产方法。
Production method of 5-phthalancarbonitrile compound, intermediate therefor and production method of the intermediate
申请人:——
公开号:US20010056194A1
公开(公告)日:2001-12-27
The present invention provides a production method of a 5-phthalancarbonitrile compound, which comprises the use of a novel compound of the formula [I]
1
wherein X is chlorine atom, bromine atom or iodine atom, as a key intermediate. The method of the present invention imposes small environmental burden (without use of a reagent imposing great burden on the environment, such as heavy metal, metal cyanide, thionyl chloride and the like) and is safe. The inventive method is based on a completely new strategy which is different from conventional production methods of 5-phthalancarbonitrile compound.
Production methods of 5-phthalancarbonitrile compound and an intermediate therefor
申请人:Sumika Fine Chemicals Co., Ltd.
公开号:US20020151728A1
公开(公告)日:2002-10-17
The present invention provides a production method of a 5-phthalancarbonitrile compound, which comprises the use of a novel compound of the formula [I]
1
wherein X is chlorine atom, bromine atom or iodine atom, as a key intermediate. The method of the present invention imposes small environmental burden (without use of a reagent imposing great burden on the environment, such as heavy metal, metal cyanide, thionyl chloride and the like) and is safe. The inventive method is based on a completely new strategy which is different from conventional production methods of 5-phthalancarbonitrile compound.