Anellated (oxa)hydantoins and their use as herbicides

A method for the preparation of an anellated (oxa)hydantoin of the Formula I, ##STR28## wherein R.sup.1 and R.sup.2, independently of one another, represent hydrogen or a radical selected from the group consisting of (C.sub.1 -C.sub.4) alkyl, (C.sub.1 -C.sub.2) haloalkyl, or phenyl optionally fluorine-substituted,

• wherein R.sup.3 and R.sup.4, independently of one another, represent hydrogen (C.sub.1 -C.sub.4) alkyl, phenyl, both optionally fluorine-and/or chlorine-, bromine- or methyl-substituted, or (C.sub.1 -C.sub.4) alkoxy;
• or also together form a carbocyclic ring which may optionally be (C.sub.1 -C.sub.4) alkyl-substituted,
• wherein Q represents one of the radicals Q.sub.1 -Q.sub.7 ##STR29## wherein W represents O or S,
• R.sup.5 represents hydrogen or halogen,
• R.sup.6 represents (C.sub.1 -C.sub.2) alkyl, (C.sub.1 -C.sub.2) haloalkyl, OCH.sub.3, SCH.sub.3, OCHF.sub.2, halogen, CN or NO.sub.2,
• R.sup.7 represents hydrogen, (C.sub.1 -C.sub.8) alkyl, (C.sub.1 -C.sub.8) haloalkyl, halogen, OR.sup.11, S(O).sub.n R.sup.11, COR.sup.11, CO.sub.2 R.sup.11, C(O)SR.sup.11, C(O)NR.sup.12 R.sup.13, CHO, CH.dbd.CHCO.sub.2 R.sup.11, CO.sub.2 N.dbd.CR.sup.14 R.sup.15, NO.sub.2, CN, NHSO.sub.2 R.sup.16 or NHSO.sub.2 NHR.sup.16,
• R.sup.8 represents hydrogen, (C.sub.1 -C.sub.3) alkyl, (C.sub.1 -C.sub.3) haloalkyl or halogen,
• R.sup.9 represents hydrogen, (C.sub.1 -C.sub.3) alkyl, (C.sub.1 -C.sub.3) haloalkyl or halogen;
• or
• if Q is Q-2 or Q-6, R.sup.8 and R.sub.9 together with the carbon atom to which they are bonded can be C.dbd.O;
• R.sup.10 represents (C.sub.1 -C.sub.6) alkyl, (C.sub.1 -C.sub.6) haloalkyl, (C.sub.2 -C.sub.6) alkoxyalkyl, (C.sub.3 -C.sub.6) alkenyl or (C.sub.3 -C.sub.6) alkynyl,
• R.sup.11 represents (C.sub.1 -C.sub.8) alkyl, (C.sub.3 -C.sub.8) cycloalkyl, (C.sub.3 -C.sub.8) alkenyl, (C.sub.3 -C.sub.8) alkynyl, (C.sub.1 -C.sub.8) haloalkyl, (C.sub.2 -C.sub.8) alkoxyalkyl, (C.sub.2 -C.sub.8) alkylthioalkyl, (C.sub.2 -C.sub.8) alkylsulphinylalkyl, (C.sub.2 -C.sub.8) alkylsulphonylalkyl, (C.sub.3 -C.sub.8) alkoxyalkoxyalkyl, (C.sub.4 -C.sub.8) cycloalkylalkyl, (C.sub.2 -C.sub.4) carboxyalkyl, (C.sub.3 -C.sub.8) alkoxycarbonylalkyl, (C.sub.6 -C.sub.8) alkenyloxycarbonylalkyl, (C.sub.6 -C.sub.8) alkynyloxycarbonylalkyl, (C.sub.4 -C.sub.8) alkenoxyalkyl, (C.sub.6 -C.sub.8) cycloalkoxyalkyl, (C.sub.4 -C.sub.8) alkynyloxyalkyl, (C.sub.3 -C.sub.8) haloalkoxyalkyl, (C.sub.4 -C.sub.8) haloalkenyloxyalkyl, (C.sub.4 -C.sub.8) haloalkynyloxyalkyl, (C.sub.6 -C.sub.8) cycloalkylthioalkyl, (C.sub.4 -C.sub.8) alkenylthioalkyl, (C.sub.4 -C.sub.8) alkynylthioalkyl, (C.sub.1 -C.sub.4) alkyl-substituted with phenoxy or benzyloxy, which may both optionally be halogen-, (C.sub.1 -C.sub.3) alkyl- or (C.sub.1 -C.sub.3) haloalkyl-substituted;
• (C.sub.4 -C.sub.8) trialkylsilylalkyl, (C.sub.3 -C.sub.8) cyanoalkyl, (C.sub.3 -C.sub.8) halocycloalkyl, (C.sub.3 -C.sub.8) haloalkenyl, (C.sub.5 -C.sub.8) alkoxyalkenyl, (C.sub.5 -C.sub.8) haloalkoxyalkenyl, (C.sub.5 -C.sub.8) alkylthioalkenyl, (C.sub.3 -C.sub.8) haloalkynyl, (C.sub.5 -C.sub.8) alkoxyalkynyl, (C.sub.5 -C.sub.8) haloalkoxyalkynyl, (C.sub.5 -C.sub.8) alkylthioalkynyl, (C.sub.2 -C.sub.8) alkylcarbonyl, benzyl optionally substituted with halogen, (C.sub.1 -C.sub.3) alkyl or (C.sub.1 -C.sub.3) haloalkyl;
• CHR.sup.17 COR.sup.18, CHR.sup.17 P(O) (OR.sup.18).sub.2, P(O) (OR.sup.18).sub.2, CHR.sup.17 P(S) (OR.sup.18).sub.2, CHR.sup.17 C(O)NR.sup.12 R.sup.13, CHR.sup.17 C(O)NH.sub.2, phenyl or pyridyl, both optionally substituted with halogen, (C.sub.1 -C.sub.3) alkyl, (C.sub.1 -C.sub.3) haloalkyl or (C.sub.1 -C.sub.4 ) alkoxy,
• R.sup.12 and R.sup.14, independently of one another, represent hydrogen or (C.sub.1 -C.sub.4) alkyl,
• R.sup.13 and R.sup.15, independently of one another, represent (C.sub.1 -C.sub.4) alkyl, phenyl, optionally substituted with halogen, (C.sub.1 -C.sub.3) alkyl, (C.sub.1 -C.sub.3) haloalkyl or (C.sub.1 -C.sub.4) alkoxy, or
• R.sup.12 and R.sup.13 may be combined into rings as --(CH.sub.2).sub.5 -, --(CH.sub.2).sub.4 -, or --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --,
• wherein one or more H atoms in each ring may be substituted optionally by (C.sub.1 -C.sub.3) alkyl, phenyl or benzyl;
• R.sup.14 and R.sup.15 together with the carbon atom to which they are bonded can form a (C.sub.3 -C.sub.8) cycloalkyl group,
• R.sup.16 represents (C.sub.1 -C.sub.4) alkyl or (C.sub.1 -C.sub.4 ) haloalkyl,
• R.sup.17 represents hydrogen or (C.sub.1 -C.sub.3) alkyl,
• R.sup.18 represents (C.sub.1 -C.sub.6) alkyl, (C.sub.3 -C.sub.6) alkenyl or (C.sub.3 -C.sub.6) alkynyl, and
• n represents 0, 1, 2,
• wherein a compound of the formula IV is reacted with a compound of the Formula V optionally in the presence of an acid acceptor and optionally in the presence of a diluent, and that the intermediate reaction product (III) formed is reacted with a compound of the Formula II, optionally in the presence of an acid acceptor and optionally in the presence of a diluent, wherein a compound of the Formula VI is formed, wherein R is H, ##STR30## and which is then converted by two ring closures into a compound of the Formula I by reaction with water binding compounds, wherein a first ring closure is carried out at a temperature between -10.degree. C. and 50.degree. C. in the presence of water or organic solvents, and a second ring closure is carried out at a temperature between 50.degree. C. and 150.degree. C. in the presence of water-free solvents.