| abstract |
Dithianes of formula I wherein R is one of the radicals of formula a, b or c, R @ 1, R @ 2, R @ 2, R @ 2, R @ 3 and R @ 3 are hydrogen, a halogen atom, a lower alkyl group, a lower alkoxy group, an aryl-lower alkoxy group, a lower alkylthio group, a trifluoromethyl group or a di (lower alkyl) amino group, or two of these adjacent groups together represent a methylenedioxy group, ethylenedioxy group, trimethylene group or tetramethylene group; is a lower alkyl group, R5, R5, R6, R6, R6, R7, R7, R6, R6, R6, R6, R6, R6, R6, R6, R6, R6, R6, R6, R6; two of these contiguous residues together represent methylenedioxy or ethylenedioxy, X is hydrogen or lower alkyl, Y and Z are both hydrogen or lower alkyl or taken together -, tri-, tetra-, or pentamethylene, with Y a |