发明授权
- 专利标题: Preparation of 5-methyl-2-nitrophenol
- 专利标题(中): 制备5-甲基-2-硝基苯酚
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申请号: US641585申请日: 1975-12-17
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公开(公告)号: US4034050A公开(公告)日: 1977-07-05
- 发明人: Mitsuru Sasaki , Kunio Mukai
- 申请人: Mitsuru Sasaki , Kunio Mukai
- 申请人地址: JA Osaka
- 专利权人: Sumitomo Chemical Company, Ltd.
- 当前专利权人: Sumitomo Chemical Company, Ltd.
- 当前专利权人地址: JA Osaka
- 优先权: UK4428/75 19750131; DT2504592 19750204; FR75.03304 19750203; BE153032 19750204; UK01314/75 19750204; CA219387 19750204; IT67270/75 19750203; SU2103873 19750203; CH1240/75 19750203; DK360/75 19750203; CS725/75 19750204
- 主分类号: C07C205/22
- IPC分类号: C07C205/22 ; C07F9/12 ; C07C79/24
摘要:
Process for preparing 5-methyl-2-nitrophenol of high purity by sulfonating tri-m-cresyl phosphate, nitrating the sulfonated tri-m-cresyl phosphate, hydrolyzing the nitrated, sulfonated tri-m-cresyl phosphate to obtain a mixture of nitro-m-cresols, steam-distilling the mixture, and repeatedly washing the distillate with a dilute aqueous alkaline solution.
公开/授权文献
- US5117434A Metal vapor laser apparatus 公开/授权日:1992-05-26
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