Substituted quinolone herbicide intermediates and process

摘要

The invention relates to substituted quinoline herbicide intermediates of the formula wherein W, X and Y are independently H, halogen, NO2, NH2 or -O-alkyl straight or branched C1-C6; Z is H, halogen, NO2, NH2, OH or -O-alkyl straight or branched C1-C6 and B is chlorine, bromine, a quaternary ammonium halide or -O-alkyl straight or branched C1-C6; with the proviso that when the following values of B, W, X, and Y are taken simultaneously: B is -O-alkyl straight or branched C1-C6; W is H; X is H and Y is H, then Z is not OH or -O-alkyl straight or branched C1-C6. Useful in the synthesis of the herbicides and methods for preparing 3-alkoxymethyl substituted quinoline herbicide intermediates.