Importance

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Abstract

Herbicidal and/or plant-growth regulatory compositions comprising, together with a carrier and/or surface-active agent, an effective amount of at least one herbicidal and/or plant growth regulatory active agent selected from compounds of formula (I) ##STR1## (in which R represents an optionally substituted aralkyl group, X represents an O--, N-- or S-linked organic group, an optionally substituted hydrocarbyl group, a halogen atom, a hydroxy, amino, alkoxyamino, nitro, cyano, azido, sulpho or phospho group, or together with the group R.sup.2e, X may represents a ketonic oxygen atom --O-- or a group of formula --CH.sub.2 O--; R.sup.1e represents a hydrogen atom or an optionally substituted hydrocarbyl group, or a formyl group; R.sup.2e represents a hydrogen atom, a hydroxy group or an optionally substituted hydrocarbyl or O-linked hydrocarbyl group, or, together with the group X, R.sup.2e may represent a ketonic oxygen atom --O-- or a group of formula --CH.sub.2 O--; R.sup.3a represents a hydrogen atom, a hydroxy group or an optionally substituted alkoxy, alkenyloxy, aralkoxy or C.sub.1-4 hydrocarbyl group; R.sup.3e represents a hydrogen atom, a hydroxy group or an optionally substituted hydrocarbyl or O-linked hydrocarbyl group; and R.sup.4e represents a hydrogen atom or an optionally substituted hydrocarbyl group) and enantiomers and salts thereof. Methods for preparing the compounds of formula (I) are described; the compositions are valuable as herbicides and/or plant-growth regulants, particularly for use with crops such as soya, rape, sugar-beet, cotton, wheat, maize and rice.

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First Claim