Compounds of Formula I having herbicidal utility are disclosed ##STR1## wherein the left-hand ring contains only single bonds or one bond in the ring is a double bond, and R.sup.1, R.sup.2, Q and n are defined in the text, including compositions containing such compounds and a method for controlling weeds employing such compounds.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is the international application of PCT/US94/02498 filed under 35 U.S.C. 371, which is a continuation-in-part of U.S. Ser. No. 08,038,730 filed Mar. 26, 1993 now abandoned.
A process for preparing a triazolinone includes the step of reacting a triazolinethione with an oxidant at a temperature range of from about 60.degree. C. to about 100.degree. C. in the presence of a base.