Algicidal and fungicidal 1-halo-2-substituted-thioethyl sulfones

Details Algicidal and fungicidal 1-halo-2-substituted-thioethyl sulfones Algicidal and fungicidal 1-halo-2-substituted-thioethyl sulfones

1980-08-11

1982-03-23

Lee, Mary C.

Chemistry: fertilizers

Processes and products

Forms or conditioning

568 29, A01N 4110

Patent

active

043210805

ABSTRACT:
1-Halo-2-alkylthioethyl and 1-halo-2-arylthioethyl sulfones, having algicidal and fungicidal activity, are prepared by the addition of arylsulfenyl or alkylsulfenyl halides to alkyl or aryl vinyl sulfones. The thioethyl sulfone products are treated with a base to produce 2-alkylthiovinyl or 2-arylthiovinyl sulfones, which also have algicidal and fungicidal activity. The vinyl sulfones are halogenated to produce 1,2-dihalothioethyl sulfones, which have superior fungicidal activity, especially for tomato and celery late blight.

REFERENCES:
patent: 3984481 (1976-10-01), Magee
patent: 3988376 (1976-10-01), Magee
patent: 4031247 (1977-06-01), Magee
F. Montanari, Chem. Abstracts (1958), 52: 2790g & 2791b.
E. Prilezhaeva et al., N. D. Zelinskii Inst. Org. Chem., Acad. Sci. USSR, English Translation From Akad. Nauk SSSR, No. 7, pp. 1602-1608, (1970).

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