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.
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.
Abstract:
O,S-dihydrocarbylphosphoroamidothioates and S,S-dihydrocarbylphosphoroamidodithioates have a high degree of insecticidal activity with relatively low mammalian toxicity.
Abstract:
The present invention relates to novel fungicides of the formula: ##STR1## wherein R.sup.1 is lower alkyl, lower akenyl, lower alkynyl or aryl of 6 to 10 carbon atoms optionally substituted with up to 3 halogen atoms; R.sup.2 is lower alkyl, lower alkenyl, lower alkynyl or aryl of 6 to 10 carbon atoms optionally substituted with up to 3 halogen atoms or up to 3 lower alkoxy groups; and R.sup.3 is alkyl of 1 to 3 carbon atoms substituted with 3 to 6 halogen atoms or trihalovinyl.
Abstract:
O,S-dihydrocarbylphosphoroamidothioates and S,S-dihydrocarbylphosphoroamidodithioates have a high degree of insecticidal activity with relatively low mammalian toxicity.
Abstract:
Compounds of the formula: ##STR1## wherein X is sulfur or oxygen; R.sub.1 is lower alkyl; R.sub.2 is lower alkyl, lower straight chain alkoxy, lower alkylthio, phenyl or the group --NR.sub.3 R.sub.4 where R.sub.3 and R.sub.4 are independently hydrogen or lower alkyl, provided that when X is oxygen, R.sub.2 is not phenyl, are pesticidal, exhibiting activity against pests such as plant fungal diseases and, in many cases, insects.
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.
Abstract:
Vinyl 2-arylthiovinyl and vinyl 2-alkylthiovinyl sulfones, having fungicidal and algicidal activity, are prepared by the addition of arylsulfenyl halides or alkylsulfenyl halides to divinyl sulfone and the dihydrohalogenation of the resulting 1,2-addition product.
Abstract:
Vinyl 2-arylthiovinyl and vinyl 2-alkylthiovinyl sulfones, having fungicidal and algicidal activity, are prepared by the addition of arylsulfenyl halides or alkylsulfenyl halides to divinyl sulfone and the dihydrohalogenation of the resulting 1,2-addition product.