A - Human Necessities – 23 – L
Patent
A - Human Necessities
23
L
99/173, 71/7
A23L 1/212 (2006.01) A01N 25/00 (2006.01)
Patent
CA 1056204
ABSTRACT OF THE DISCLOSURE The invention is a process for the promotion and facilitation of fruit abscission, which process comprises the treatment of the fruit- bearing plants or of the fruit itself with an effective amount of a compound of the general formula I Image (I) or with a non-phytotoxic salt of such a compound, the symbols in this formula having the following meanings: R1 is hydrogen, halogen, an alkyl radical having 1 to 17 car- bon atoms, an alkenyl radical having 2 to 5 carbon atoms phenylalkyl or .alpha.'- furyl; R2 is hydrogen, C1 to C17 alkyl, cycloalkyl, phenyl, carboxy carbalkoxy, carbanilido, a heterocyclic radical such as pyridyl and furyl, or a group Image wherein R? has the same meaning as R1, n is an integer from 0 to 3, R1 and R2 taken together form a C3-C12 ring, and R3 and R4 each independently represent hydrogen and radicals from the group consisting of C1-C12 alkyl, C2-C5 alken- yl, alkylcarbonyl, phenylcarbonyl, N-alkylcarbamoyl, N-alkylthiocarbamoyl N, N-dialkylcarbamoyl, phenylcarbamoyl, phenylalkyl, alkoxycarbonyl, phenoxy- carbonyl phenylalkoxycarbonyl, alkylthiocarbonyl, phenylthiocarbonyl, .alpha.-furyl and tetrahydropyranyl, with the proviso that when n is 0, R1 and R? are both hydrogen and R3 is hydrogen, C1 to C12 alkyl, C2 to C5 alkenyl, phenylalkyl, N-alkylcarbamoyl, N-alkylthiocarbamoyl, alkylthiocarbonyl or tetrahydropyranyl, R4 is not C1 to C12 alkyl, C2 to C5 alkenyl, phenylalkyl, alkylcarbonyl, phenylcarbonyl, N-alkylcarbamoyl, N-alkylthiocarbamoyl, N,N-dialkylcarbamoyl, N-phenylcarbamoyl, alkoxycarbonyl, phenoxycarbonyl, alkylthiocarbonyl or tetra- hydropyranyl, and the further proviso that when n is 0, R1 and R? are both hydrogen and R4 is C1 to C12 alkyl, C2 to C5 alkenyl, phenylalkyl, alkyl- carbonyl, phenylcarbonyl N-alkylcarbamoyl, N-alkylthiocarbamoyl, N,N-dialkyl- carbamoyl, N-phenylcarbamoyl, alkoxycarbonyl, phenoxycarbonyl, alkylthiocarbonylor tetrahydropyranyl R3 is not hydrogen, C1 to C12 alkyl, C2 to C5 alkenyl, phenylalkyl, N-alkylcarbamoyl, N-alkylthiocarbamoyl, N,N-dialkylcarbamoyl, N- phenylcarbamoyl, alkoxycarbonyl, phenoxycarbonyl, alkylthiocarbonyl or tetra- hydropyramyl.
177507
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