Isoxazoline derivatives and plant growth regulators

Abstract From the Canadian patent

Novel 3-substituted phenyl-2-isoxazoline-5carboxylic acids or esters thereof are described which, have excellent properties as plant growth regulators. Such compounds have the formula: (I), wherein R is a hydrogen atom or a lower alkyl group X, is a halogen atom, lower alkyl group lower haloalkyl, group, lower haloalkoxy group nitro group, phenoxy, group or cyano group n is 1 or 2, and X may be the same, or different when n is 2 where X is a fluorine atom, bromine atom iodine atom, lower alkyl group having at least 2 carbon atoms, lower haloalkyl group lower, haloalkoxy group, phenoxy group or cyano group when n is 1 and X is at the 4-position.