Heterocyclylalkyl esters of 2-imidazolinonenicotinic acids

Abstract From the Canadian patent

Heterocyclylalkyl esters of 2-imidazolinonenicotinic acids Abstract of the Disclosure, Novel heterocyclylalkyl esters of 2-imidazolinonenicotinic acids of formula I below have good selective herbicidal properties pre- and postemergence and also influence or inhibit plant growth. The novel esters have the formula I (I), wherein, A is a straight chain or branched C1-C3alkylene bridge X and Y are each independently of the other hydrogen C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy C1-C3haloalkoxy or halogen, or X and Y together form the butadiene bridge, which may be substituted by halogen, cyano or C1-C4alkyl, and, Het is a 5- or 6-membered heterocycle which contains one to three nitrogen atoms …