SUBSTITUTED THIOSEMICARBAZIDES, THEIR MANUFACTURE AND USE AS PLANT GROWTH REGULANTS

摘要

S-635 -1- 1-Benzoyl-3-thiosemicarbazides of formula I: I wherein R is or ; R1 is -OH, -NR'R'', C1-C4 alkyl or hydrogen; Q is hydrogen, C1-C4 alkyl or C3-C6 cyclo alkyl; each of R' and R'' independently is hydrogen, C1-C10 alkyl, C3-C7 alkoxyalkyl or alkoxyalkoxyalkyl, C3-C6 cycloalkyl, phenyl C1-C2 alkyl where the phenyl group is optionally substituted by halo or C1-C4 alkoxy; or R' and R'' taken together with the nitrogen atom to which they are attached form a heterocyclic ring containing from 5 to 7 ring atoms; each R2 independently is halogen, C1-C4 alkyl, C1-C4 alkoxy, nitro or trlfluoromethyl; m is 0, 1 or 2; R3 is hydrogen, Cl-C4 alkyl, C3-C4 alkenyl containing no .alpha.,.beta. unsaturation, C1-C4 hydroxyalkyl, phenyl or benzyl;