compositions that include a fungicide derivative 2 _ (0 _ open square bracket closed right _ substituted alkyl) _ 2 _ tio, 1.32 _ bones _ tiofosfolano, and a process for the preparation of the active ingredients.

摘要

A fungicidal composition comprising as active ingredient a 2-(O-[substituted]alkyl)-2-thio-1,3,2-oxathiophospholane of the Formula I IMAGE (I) wherein R1,R2, R3 and R4 independently from each other stand for hydrogen, C1-6 alkyl, C2-6 alkynyl and X represents halogen, hydrogen, C1-6 alkyl or mercapto. The process for the preparation of the compounds of the Formula I involves phosphorous pentasulfide, alcohols and pyridine. The compositions are wide spectrum fungicides, particularly useful in combating Sclerotinia sp., Penicillium sp., Alternaria sp., Fusarium sp., Phytophthora infestans and powdery mildew.