ABSTRACT
In the case of imazaquin, soybean first hydroxy la tes the imidazolinone r ing at the imine carbon and then cyclize the imidazolinyl nitrogen w i t h the py r idy l carboxyl group (Fig. 8.10) [93J. This may be followed by dehydration to yield a cyclic intermediate (1), which is then ring-opened to give metabolite (2) which when hydrolyzed yields a water-soluble metabolite (3). Metabolite (4), which arises from a non-enzymatic hy drolysis of metabolite (2), is a minor metabolite. Metabolite (5), on the other hand, may arise from the hydroxylation of intermediate (1). Tecle et al. [93] reported that the polar metabolites resulted from metabolic processes in soybean tissue.
