Products from the hydrolysis of .beta.-halogenoethyl-silanes and their use as agents for the regulation of plant growth
AssigneeCiba-Geigy Corporation
InventorsWerner Fory, Hanspeter Fischer, Dieter Lohmann, Gerd Greber
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Abstract
The present invention relates to partially polymerized products obtained by hydrolysis of .beta.-halogenoethyl-silanes and to the hydrolysis of the said monomeric silanes with water or an aqueous medium. The dimers are the preferred final products. The invention is further concerned with agents and methods for the regulation and control of plant development, especially for promoting fruit abcission as well as resin and latex flow in trees, using the said partially polymerized .beta.-halogeno silane hydrolysates as the active ingredients.
Claims7
Partially polymerised products from the hydrolysis of beta-halogenoethylsilanes, with a degree of polymerisation of at most 3, which are obtained by hydrolysis of beta-halogenoethyl-silanes of formula I ##STR8## wherein X represents chlorine or bromine,
- A represents a radical --O--R.sub.4, chlorine or the methyl group,
- B represents a radical --O--R.sub.6 or chlorine, and
- C represents a radical --O--R.sub.8 or chlorine,
- wherein the radicals
- R.sub.4, r.sub.6 and R.sub.8 each independently represent C.sub.1 -C.sub.18 alkyl;
- C.sub.1 -C.sub.6 alkyl substituted by halogen;
- C.sub.1 -C.sub.18 alkyl substituted by C.sub.3 -C.sub.12 cycloalkyl;
- C.sub.3 -C.sub.18 alkenyl;
- C.sub.3 -C.sub.12 cycloalkenyl;
- C.sub.3 -C.sub.18 alkenyl;
- C.sub.3 -C.sub.8 alkynyl or C.sub.3 -C.sub.12 cycloalkyl substituted by phenyl or halogen;
- phenyl optionally mono- or polysubstituted by C.sub.1 -C.sub.8 alkyl or C.sub.1 -C.sub.6 halogenoalkyl;
- benzyl radicals optionally mono- or polysubstituted by C.sub.1 -C.sub.8 alkyl or halogen.
Dependencies are inferred from the claim text.