| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
[-S-C6H4-S-(Alkyl)]2 prepn - Sulfonating 4-position of an alkyl phenyl sulfide to obtain 4-alkylthiobenzenesulfonic acid (I) - Chlorinating (I) using 1-1.2 equiv dimethylformamide & thionyl chloride to obtain 4-alkylthiobenzenesulfonyl chlori de (II) - Reducing (II) to obtain 4-alkylthiobenzenethiol (III) - Oxidation of (III) |
| PATENT PHOTOCOPY | Available on request |
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