Preparation of herbicidal 2-(4-(pyridyl-2-oxy)-phenoxy)- propionic acid derivatives and compounds thus obtained.

摘要

The dextrorotatory optical isomer of the acid of formula: <CHEM> and salts, esters and other derivatives thereof, useful as selective herbicides for grass weeds in broad-leaved crops, and having more favourable herbicidal properties then the DL racemic form of the acid.