Patent ID: 6194575
Filing Date: 2001-02-27
Classification: C07D

Abstract:
A process for the preparation of compounds of the formula (I) ##STR68##in whichR.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.2 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl or a radical --CH.sub.2 R.sup.3,R.sup.3 is C.sub.2 -C.sub.5 -alkenyl;C.sub.2 -C.sub.5 -alkinyl;phenyl;cyanophenyl;nitrophenyl;halogenophenyl having from 1 to 3 halogen atoms;phenyl substituted by C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -halogenoalkyl having from 1 to 7 halogen atoms, C.sub.1 -C.sub.3 -alkoxy or C.sub.1 -C.sub.3 -halogenoalkoxy having from 1 to 7 halogen atoms;3-pyridyl;5-thiazolyl;5-thiazolyl substituted by one to two substituents from the group consisting of C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -halogenoalkyl having from 1 to 7 halogen atoms, cyclopropyl, halogenocyclopropyl having from 1 to 3 halogen atoms, C.sub.2 -C.sub.3 -alkenyl, C.sub.2 -C.sub.3 -alkinyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.2 -C.sub.3 -halogenoalkenyl and C.sub.2 -C.sub.3 -halogenoalkinyl having in each case from 1 to 4 halogen atoms, C.sub.1 -C.sub.3 -halogenoalkoxy having from 1 to 7 halogen atoms, C.sub.1 -C.sub.3 -alkylthio, C.sub.1 -C.sub.3 -halogenoalkylthio having from 1 to 7 halogen atoms, allyloxy, propargyloxy, allylthio, propargylthio, halogenoallyloxy and halogenoallylthio having in each case from 1 to 3 halogen atoms, halogen, cyano, nitro;3-pyridyl substituted by one to four radicals from the group consisting of C.sub.1 -C.sub.3 -halogenoalkyl having from 1 to 7 halogen atoms, cyclopropyl, halogenocyclopropyl having from 1 to 3 halogen atoms, C.sub.2 -C.sub.3 -alkenyl, C.sub.2 -C.sub.3 -alkinyl, C.sub.2 -C.sub.3 -halogenoalkenyl and C.sub.2 -C.sub.3 -halogenoalkinyl having in each case from 1 to 4 halogen atoms; C.sub.1 -C.sub.3 -halogenoalkoxy having from 1 to 7 halogen atoms, C.sub.1 -C.sub.3 -alkylthio, C.sub.1 -C.sub.3 -halogenoalkylthio having from 1 to 7 halogen atoms, allyloxy, propargyloxy, allylthio, propargylthio, halogenoallyloxy and halogenoallylthio having in each case from 1 to 3 halogen atoms, cyano, nitro, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -alkoxy, halogen;Het is an unsubstituted or substituted heterocyclic radical selected the group consisting of ##STR69##which may include one to two substituents from the group consisting of C.sub.1 -C.sub.3 -halogenoalkyl having from 1 to 7 halogen atoms, cyclopropyl, halogenocyclopropyl having from 1 to 3 halogen atoms, C.sub.2 -C.sub.3 -alkenyl, C.sub.2 -C.sub.3 -alkinyl, C.sub.2 -C.sub.3 -halogenoalkenyl and C.sub.2 -C.sub.3 -halogenoalkinyl having from 1 to 4 halogen atoms, C.sub.1 -C.sub.3 -halogenoalkoxy having from 1 to 7 halogen atoms, C.sub.1 -C.sub.3 -alkylthio, C.sub.1 -C.sub.3 -halogenoalkylthio having from 1 to 7 halogen atoms, allyloxy, propargyloxy, allylthio, propargylthio, halogenoallyloxy, halogenoallylthio, cyano, nitro, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -alkoxy, and halogen,comprising reacting a compound of the formula (II) ##STR70##in whichR.sup.1, R.sup.2 and Het are as defined above, andR.sup.4 is C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, phenyl, benzyl or heterocyclylmethyl, each of which may be unsubstituted or substituted, where heterocyclyl is an unsaturated or saturated 5- or 6-membered heterocycle containing one or two heteroatoms from the series nitrogen, oxygen and sulphur,with urea in the presence of a diluent.