three times by halogen preferably by fluorine or chlorine especially by fluorine examples are difluoromethyl trifluoromethyl 2 2 2 trifluoroethyl perfluoroethyl and the like especially trifluoromethyl the term u201c halogenated alkoxy u201d as used herein means an alkoxy group as defined above which is substituted one or several times by halogen preferably by fluorine or chlorine especially fluorine examples are difluoromethoxy trifluoromethoxy 2 2 2 trifluoroethoxy perfluoroethoxy and the like especially trifluoromethoxy the term u201c heteroaryl u201d means a mono or bicyclic aromatic ring with 5 to 10 preferably 5 to 6 ring atoms which contains up to 3 preferably 1 or 2 heteroatoms selected independently from n o or s and the remaining ring atoms being carbon atoms such heteroaryl groups can be optionally substituted one to three preferably one or two times by alkyl preferably by methyl examples of such heteroaryl groups include pyrrolyl imidazolyl pyrazolyl methylpyrazolyl dimethylpyrazolyl triazolyl tetrazolyl furanyl oxazolyl isoxazolyl thienyl methylthienyl thiazolyl methylthiazolyl pyridyl pyrimidyl pyridazinyl pyrazinyl indolyl indazolyl benzimidazolyl benzothiophenyl benzofuranyl quinolyl isoquinolyl quinazolinyl and the like preferably pyrazolyl methylpyrazolyl or dimethylpyrazolyl and especially dimethylpyrazolyl the term u201c heterocyclyl u201d means a saturated monocyclic hydrocarbon ring with 5 to 6 ring atoms which contains up to 3 preferably 1 or 2 heteroatoms selected independently from n o or s and the remaining ring atoms being carbon atoms such saturated heterocyclic group can be optionally.