A facile method for the synthesis of a new series of R,R-2-（4-（2-（4-（5-chloro-3-halopyridin-2-yloxy）-phenoxy）-propionyloxy）-phenoxy） -propionic acid ester derivatives containing a halo-substituted pyridine car...A facile method for the synthesis of a new series of R,R-2-（4-（2-（4-（5-chloro-3-halopyridin-2-yloxy）-phenoxy）-propionyloxy）-phenoxy） -propionic acid ester derivatives containing a halo-substituted pyridine carrying two R,R chiral centers from（R）-2-（4- hydroxyphenoxy）propionic acid,halopyridines and alcohols using base/cyanuric chloride/catalyst system is reported.Their herbicidal activities against grass weeds and crops selectivity were evaluated.展开更多
文摘A facile method for the synthesis of a new series of R,R-2-（4-（2-（4-（5-chloro-3-halopyridin-2-yloxy）-phenoxy）-propionyloxy）-phenoxy） -propionic acid ester derivatives containing a halo-substituted pyridine carrying two R,R chiral centers from（R）-2-（4- hydroxyphenoxy）propionic acid,halopyridines and alcohols using base/cyanuric chloride/catalyst system is reported.Their herbicidal activities against grass weeds and crops selectivity were evaluated.
