| abstract |
A benzimidazole derivative having the formula, <IMAGE> wherein R is cyano or thiocarbamoyl; Q is lower alkyl or a group represented by the formula NQ1Q2, in which Q1 and Q2 are independently lower alkyl, lower alkyl substituted with phenyl, lower alkenyl or lower alkynyl, or they form a lower alkylene ring when taken together at their ends which ring may include a hetero atom; X is hydrogen or halogen; and Z is a group which consists of (a) one oxygen atom or two non-adjacent oxygen atom, (b) -CF2- group and (c) any one of a single bond, -CF2-, -CFH-, CFCl- and -CH2- groups and forms a five-membered or six membered ring together with two adjacent carbon atoms of the benzene ring; is obtained by reacting a corresponding 2-cyanobenzimidazole compound and a sulfamoyl chloride derivative. The benzimidazole derivative is incorporated into agricultural and horticultural fungicides as an active ingredient. |