发明名称 |
PROCESS FOR PREPARING 2,5-DISUBSTITUTED BENZOIC ACIDS |
摘要 |
1395295 Process for 2-alkoxy- or -alkenyloxy- 5-alkyl or alkenyl-sulphonyl-benzoic acids SOC D'ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE-DE-FRANCE 6 June 1973 [12 June 1972] 27050/73 Heading C2C The invention comprises a process for making compounds (I) in which each of A and B is a C 1-5 alkyl or C 2-5 alkenyl radical, that comprises nitrosating o-cresol to produce 5-nitroso-o-cresol, reducing the nitroso derivative to 5-amino-o-cresol, treating the latter with an alkylating or alkenylating agent to produce the corresponding 2- (alkoxy or alkenyloxy)-5-aminotoluene, diazotizing this compound and treating the resulting diazo compound with a metal salt of an alkylthiol or alkenylthiol to produce a 2-(alkoxy- or -alkenyloxy)-5-(alkylthio- or -alkenylthio)- toluene which is thereafter oxidized to give (I). |
申请公布号 |
GB1395295(A) |
申请公布日期 |
1975.05.21 |
申请号 |
GB19730027050 |
申请日期 |
1973.06.06 |
申请人 |
SOC DETUDES SCIENTIFIQUES ET INDUSTRIELLES DE;I ILE DE FRANCE |
发明人 |
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分类号 |
C07C67/00;C07C207/04;C07C313/00;C07C315/02;C07C317/46;C07C323/20;(IPC1-7):07C147/06;07C93/14;07C149/36;07C81/04;07C91/44 |
主分类号 |
C07C67/00 |
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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