Isobenzofurandione thiosemicarbazones and use as plant growth re

Chemistry: fertilizers – Processes and products – Forms or conditioning

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2603433R, 2603405R, A01N 4308, A01N 4330, C07D30790, C07D31766

Patent

active

042722802

ABSTRACT:
A novel class of compounds which are useful as plant growth regulators is disclosed, having the general structural formula: ##STR1## R' is; C.sub.1 to C.sub.4 alkyl, nitro or halo and n is zero or an integer from 1 to 4, R.sup.2 is; C.sub.1 to C.sub.4 alkyl, or phenyl and Ar is; phenyl or benzyl which may also have thereon a methylenedioxy group or from one to three of the substituents: cyano, phenoxy, nitro, fluoro, bromo, chloro, trifluoromethyl, C.sub.1 to C.sub.4 alkyl, alkenyl, alkoxy or alkylthio and C.sub.1 to C.sub.4 alkyl-substituted amino.

REFERENCES:
patent: 3985773 (1976-10-01), Alt et al.
patent: 3990880 (1976-11-01), Mumford
patent: 4094661 (1978-06-01), Alt et al.
patent: 4148625 (1979-04-01), Nagase
Roderick et al., J. Org. Chem. 28, 2018 (1963).

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