Abstract

The enantiomeric separation of pyriproxyfen(Sumilarv ®), a new insect growth regulator, was investigated on several commercially available chiral stationary phases consisting of cellulose esters coated on sillica. The resolution has been only achieved by using a cellulose tris (4-methylbenzoate)-coated sillica gel. The enantiomeric elution order changed according to the steric bulk of the alcohols. The possible mechanisms of the reveral of elution order are discussed

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