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专利名称：Process and intermediates for the
preparation of triazolone derivatives
发明人：FINDEISEN, KURT, DR.,LINDIG, MARKUS, DR.申请号：EP90108483.0申请日：19900505公开号：EP0398097B1公开日：19930224
摘要：The invention relates to a novel process and to novel intermediates for thepreparation of substantially known triazolone derivatives, in which triazolone derivativesof the general formula (I) …… are obtained by reacting iso(thio)cyanates of the formula(II> X = C = N-R<1> (II> with aminoguanidines of the formula (III) …… or with acid adductsof compounds of the formula (III) (step 1) and condensing the (thio)ureidoguanidines ofthe general formula (IV) formed in this reaction …… or, if desired, acid adducts of
compounds of the formula (IV) to give compounds of the formula (I) with elimination of adialkylamine (HNR<3>R<4>) (step 2).
申请人：BAYER AG,BAYER AG
地址：W-5090 LEVERKUSEN 1 BAYERWERK,W-5090 LEVERKUSEN 1 BAYERWERK
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