发明名称 |
Process of preparing 2-methyl-3-aminobenzotrifluoride |
摘要 |
2-methyl-3-aminobenzo-trifluoride is prepared with high yields and high productivity by first halogenating o-trifluoromethylbenzalhalide, then secondly hydrogenating 2-trifluoromethyl-4-halogeno-benzalhalide formed by the first reaction, then thirdly nitrating 2-methyl-monohalogenobenzotrifluoride formed by the second reaction, and then fourthly hydrogenating 2-methyl-3-nitro-5-halogenobenzotrifluoride formed by the third reaction.
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申请公布号 |
US5449831(A) |
申请公布日期 |
1995.09.12 |
申请号 |
US19940177490 |
申请日期 |
1994.01.05 |
申请人 |
CENTRAL GLASS COMPANY, LIMITED |
发明人 |
NISHIMIYA, TAKAYUKI;KANAI, MASATOMI;KAWAI, TOSHIKAZU |
分类号 |
B01J23/44;C07B61/00;C07C17/00;C07C17/12;C07C17/23;C07C25/13;C07C205/12;C07C209/36;C07C211/52;(IPC1-7):C07C209/36 |
主分类号 |
B01J23/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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