Herbicidal aryl esters of N-[(heterocyclic)-aminocarbonyl]sulfamic acid

A compound of the formula:

• ##STR46## where Q is O or NR.sub.5 ;
• R.sub.1 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkyl substituted with 1-3 atoms of F, Cl or Br, CH.sub.2 CH.sub.2 OCH.sub.3, CH.sub.2 CH.sub.2 CH.sub.2 OCH.sub.3 or ##STR47## R.sub.2 is H, F, Cl, Br, OCH.sub.3, NO.sub.2 or C.sub.1 -C.sub.2 alkyl;
• R.sub.3 is H, F, Cl, Br or CH.sub.3 ;
• R.sub.4 is H, CH.sub.3 or OCH.sub.3 ;
• R.sub.5 is C.sub.1 -C.sub.4 alkyl;
• R.sub.6 and R.sub.7 are independently H, F, Cl, Br, CH.sub.3, CF.sub.3, NO.sub.2 or OCH.sub.3 ;
• A is ##STR48## X is NH.sub.2, N(CH.sub.3).sub.2, NHCH.sub.3, C.sub.1 -C.sub.4 alkyl, CH.sub.2 OCH.sub.3, CH.sub.2 OC.sub.2 H.sub.5, C.sub.1 -C.sub.3 alkoxy, C.sub.3 -C.sub.4 alkenyloxy, C.sub.3 -C.sub.4 alkynyloxy, OCH.sub.2 CF.sub.3 or C.sub.1 -C.sub.3 alkyl substituted with 1-3 atoms of F, Cl or Br;
• Y is H, CH.sub.3, OCH.sub.3 or Cl;
• Z is CH, CCH.sub.3, CBr, CCl, CF or CI
• provided that:
• (1) when Y is Cl, then Z is CH and X is NH.sub.2, NHCH.sub.3, N(CH.sub.3).sub.2, CH.sub.3 or OCH.sub.3 ;
• and
• (2) when Y is H, then X is OCH.sub.3, CH.sub.3 or CH.sub.2 OCH.sub.3, and Z is CH, CCH.sub.3, CBr, CCl, CF or CI.