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    • 10. 发明授权
    • Process for the preparation of thiocarbamates
    • 硫代氨基甲酸酯的制备方法
    • US4617416A
    • 1986-10-14
    • US713603
    • 1985-03-19
    • Renato UgoStefano CampolmiVittorio Carletti
    • Renato UgoStefano CampolmiVittorio Carletti
    • C07B61/00B01J31/00C07C67/00C07C325/00C07C333/02C07C333/04C07C333/06C07C333/20C07C333/22C07C155/02
    • C07C333/02
    • There is disclosed a process for the preparation of thiocarbamates having the following general formula: ##STR1## wherein: R represents alkyl C.sub.1 -C.sub.4 optionally substituted with one or more halogen atoms, alkenyl C.sub.2 -C.sub.4 optionally substituted with one or more halogen atoms, phenyl optionally substituted with one or more halogen atoms, benzyl optionally substituted with one or more halogen atoms on the phenyl ring;R.sup.1 and R.sup.2, equal or different from one another, represent alkyl C.sub.1 -C.sub.4 or cycloalkyl;consisting in reacting organic dithiocarbonates with organic carbamoyl halides, in the presence of an aqueous solution of an inorganic base and a phase transfer catalyst, at a temperature of 10.degree. to 50.degree. C. for time periods of 5 to 10 hours.The thiocarbamates obtained are used as herbicides, fungicides, etc., and in general in various fields of "fine chemicals".
    • 公开了制备具有以下通式的硫代氨基甲酸酯的方法:其中:R表示任选被一个或多个卤素原子取代的C 1 -C 4烷基,任选被一个或多个卤素原子取代的烯基C 2 -C 4,苯基 任选地被一个或多个卤素原子取代,苯基上任选被一个或多个卤素原子取代的苄基; R1和R2彼此相同或不同,表示烷基C1-C4或环烷基; 在有机二硫代碳酸酯与有机氨基甲酰卤反应的条件下,在无机碱和相转移催化剂的水溶液存在下,在10〜50℃的温度下反应5〜10小时。 所得的硫代氨基甲酸酯用作除草剂,杀真菌剂等,一般用于“精细化学品”的各个领域。