Pesticidal symmetrical bis-sulfenylated-bis carbamate compounds

A compound of the formula:

• ##STR39## wherein:
• X is:
• A. a substituted or unsubstituted divalent alkylene, alkenylene, alkynylene, monocyclic arylene, bicyclic arylene, biphenylene or a divalent alkylene chain which includes one oxygen, sulfur, sulfinyl, sulfonyl or nitrogen, wherein the permissible substitutents are one or more alkyl, fluoro, nitro, chloro, or bromo groups.
• B. a divalent organic radical of the formula:
• ##STR40## wherein:
• Y is oxygen, sulfur, sulfinyl, sulfonyl, alkylene, haloalkylene, alkenylene, or haloalkenylene;
• R.sub.1 is alkyl having from one to four carbon atoms;
• R.sub.2 is:
• ##STR41## wherein R.sub.3 is hydrogen alkyl, alkylthio, alkylsulfinyl, alkylsulfonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl or cyano;
• R.sub.4 is alkyl, alkylthio, alkylsulfinyl, alkylsulfonyl, aminocarbonyl, alkylaminocarbonyl dialkylaminocarbonyl or alkanoyl, all of which may be unsubstituted or, except for aminocarbonyl substituted with one or more cyano, amido, nitro, alkylthio, alkylsulfonyl or alkylsulfinyl;
• A is a divalent chain having from 2 to 24 aliphatic carbon atoms completing a 2-oximino-1,4 dithiane, 2-oximino-1,3-dithiane, 4-oximino-1,3-dithiolane, 2-oximino-1,4-dioxane, 2-oximino-1,4-oxathiane, 2-oximino tetrahydro-1,4-thiazine-3-one, 2-oximino-1,3-dithiolane, 2-imino-4-oximino-1,3-dithiolane, 3-oximinothiophane, 2-oximinothiophane, 2-oximino-tetrahydro-1,4-oxazin-3-one, 2-oximino-1,3,5-trithiane, 4-oximino-1,3,5-oxadithiane, 2-oximino-1,3-thiazolidin-4-one, 5-oximino-1,3-thiazolidin-4-one or 2-oximino-tetrahydro-1,4-thiazine-5-one ring structure, wherein sulfur may be in any of its oxidation states.