Title: Process for preparing N-(2 or 3-M, 5 or 6-M', 4-amino-phenyl)-N',N'-dimethyl acetamidine
Application Number: 95112223 Application Date: 1995.11.16
Publication Number: 1150147 Publication Date: 1997.05.21
Approval Pub. Date: Granted Pub. Date: 2002.10.30
International Classifi-cation: C07C257/14
Applicant(s) Name: Xinhua Medicine Group Co., Ltd., Shandong Address: 255005
Inventor(s) Name: Cui Yuanxing, Guo Qiang
Attorney & Agent: GENG XIA
Abstract:
     A process for reducing nitryl with unstable guanyl on para-position of benzene ring into azyl features that active metal (Zn or Sn) reacts on organic acid and solvent at ordinary temp. and pressure to reduce N-(2 or 3-M, 5 or 6-M',4-nitrophenyl)-N',N'-dimethyl acetamidine into N-(2 or 3-m, 5 or 6-M', 4-aminophenyl)-N',N'-dimethyl acetamidine, where M=H,-R,-OR,-COOR (R=H, C1-C6); and M'=H,-R,-OR,-COOR (R=H, C1-C6). Its advantages include reduced by-reaction and high reducting rate up to 80%-95%.
Time: 4
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