.beta.-Halogenoethyl-silanes as plant growth regulators

Details .beta.-Halogenoethyl-silanes as plant growth regulators .beta.-Halogenoethyl-silanes as plant growth regulators

1974-02-15

1976-10-12

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

71 79, C07F 704, C07F 718

Patent

active

039857808

ABSTRACT:
The present invention relates to new compositions and methods for the regulation of plant growth, especially for fruit abscission, acceleration of ripening and latex discharge and to new active substances of the class of .beta.-halogenoethyl-silanes.
The active substances in the new compositions respond to the formula ##EQU1## wherein X is chlorine or bromine, Y represents chlorine or the radical --OR.sub.3, each of the radicals R.sub.1, R.sub.2 and R.sub.3 independently represent substituted or unsubstituted alkyl radicals, alkenyl, halogenalkenyl, alkynyl and cycloalkyl radicals, substituted or unsubstituted phenyl and benzyl radicals; one or more of the symbols R.sub.1, R.sub.2 and R.sub.3 can also represent the group --COR.sub.4, wherein R.sub.4 stands for an unsubstituted or substituted alkyl or alkenyl radical, a possible phenyl substituent may itself be substituted or not, for an alkynyl, alkoxyalkyl, alkoxycarbonylalkyl, or phenyl radical optionally substituted or for a heterocyclic radical; R.sub.1 and R.sub.2, also with the signification of --CO--R.sub.4, together with the adjacent atoms, can also form a silicium-containing saturated or unsaturated heterocyclic ring system.
The .beta.-bromoethyl-silanes and the .beta.-chloroethylsilanes of the above formula wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 do not represent unsubstituted alkyl radicals with less than 6 carbon atoms, are new compounds.

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patent: 3694480 (1972-09-01), Omietanski
"J. Med. Chem.", 9, p. 949, 1966.
"J.A.C.S.", 68, p. 485, 1946.
"J.A.C.S.", 70, p. 2869, 1948.

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