The invention relates to new heterocyclylbenzonitriles of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and Het have the meanings given in the description, new processes and new intermediate products for their preparation and their use as herbicides.
This application is a divisional of U.S. application Ser. No. 09/445,500, filed on Nov. 15, 1999, now abandoned, which is a divisional of U.S. application Ser. No. 09/153,715, filed on Sep. 15, 1998, now U.S. Pat. No. 6,100,420, which is a divisional of U.S. application Ser. No. 08/727,501, filed on Oct. 21, 1996, now U.S. Pat. No. 5,858,925, which is a 371 of PCT/EP/95/01441 filed on Apr. 18, 1995.