发明授权
EP0018368B1 INSECTICIDAL 2-SUBSTITUTED-IMINO-3-ALKYL-5-DIALKOXYPHOSPHINOTHIOYLOXY-6H-1, 3,4-THIADIAZINES AND PREPARATION THEREOF 失效
杀虫剂2-取代的亚氨基-3-烷基-5-二烷氧基磷酰基己基-6H-1,3,3-thiadiaZINES及其制备

INSECTICIDAL 2-SUBSTITUTED-IMINO-3-ALKYL-5-DIALKOXYPHOSPHINOTHIOYLOXY-6H-1, 3,4-THIADIAZINES AND PREPARATION THEREOF
摘要:
Thiadiazine compounds of the formula (I) (FORMULA) wherein R1 is alkyl, R2 is alkyl, cycloalkyl, alkenyl or aryl, R3 is alkyl and R4 is alkyl, are useful as insecticides. The thiadiazine compounds are prepared by the addition of a dialkylhalothiophosphate to a tetrahydro-6H-1,3,4-thiadiazin-5-one. The thiodiazin-5-one precursor is prepared by reacting a thiosemicarbizide with an alkyl alpha-halothio acetate or with a haloacetic anhydride.
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