Phosphonium salts of N-phosphonomethylglycine, preparation and compositions thereof and the use thereof as herbicides and plant growth regulants.

摘要

A compound characterised in that is consists essentially of a phosphonium cation and glycylmethyl phosphonate anion is disclosed.
<??>More particularly, such compounds correspond to the following general formula (I):
<CHEM>
wherein
R<1>, R<2>, R<3> and R<4> independently represent C1-C10 alkyl, optionally substituted benzyl or optionally substituted phenyl, the substituents being selected from halogen C1-C4 alkoxy and C1-C4 alkyl, provided that at least one or R<1>, R<2>, R<3> and R<4> represents optionally substituted benzyl or substituted phenyl;
or to the following general formula (II):
<CHEM>
wherein
R<1>, R<2>, R<3> and R<4> independently represent C1-C10 alkyl or phenyl.
<??>Such compounds may be used as herbicides and plant growth regulants.