| 摘要 |
1379745 Oxathiin compounds UNIROYAL Ltd 9 Dec 1971 [24 Dec 1970] 57268/71 Heading C2C A process for oxidizing a 5,6-dihydro-2- methyl - 1,4 - oxathiin - 3 - carboxamide to the corresponding 4,4-dioxide comprises bringing together with agitation the starting material and a two-phase liquid medium, one-phase comprising aqueous formic acid containing H 2 O 2 and the other phase comprising an inert organic solvent for the carboxamide, whereby the oxidation proceeds and the product is recovered from the reaction mixture. |
