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公开(公告)号：EP0807099A1
公开(公告)日：1997-11-19
申请号：EP96901747.0
申请日：1996-01-22
申请人： BAYER AG
摘要： Nucleus-halogenated benzoyl chlorides are obtained in a particularly advantageous manner by reacting nucleus-halogenated benzotrichlorides with formic acid in the presence of iron salts.
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2.发明公开VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON HALOGENMETHYLCYCLOPROPANEN UND BESONDERS REINE HALOGENMETHYLCYCLOPROPANE 失效改进方法卤素甲基环丙烷和特别PURE卤素甲基丙CYCLO的制备
公开(公告)号：EP0882004A1
公开(公告)日：1998-12-09
申请号：EP97903252.0
申请日：1997-02-10
申请人： BAYER AG
CPC分类号： C07C22/04 , C07C17/16 , C07C22/00 , C07C2601/02
摘要： In an improved process for the production of halogen methyl cyclopropanes of formula (I) in which Hal is chlorine or bromine and R1 to R5 are mutually independently hydrogen, optionally substituted C¿1?-C10 alkyl or optionally substituted C6-C10 aryl, the corresponding hydroxymethyl propanes are mixed with chlorine or bromine and an organic phosphorus compound, and chlorine or bromine is reacted in an excess of at least 5 mol % (in relation to te hydroxymethyl cyclopropane). It is thus possible to obtain highly pure products containing little 1-halogen-3-butene.
摘要翻译： 本发明涉及一种用于halogenomethylcyclopropanes的制备方法。
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3.发明授权VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON HALOGENMETHYLCYCLOPROPANEN UND BESONDERS REINE HALOGENMETHYLCYCLOPROPANE 失效改进方法卤素甲基环丙烷和特别PURE卤素甲基丙CYCLO的制备
公开(公告)号：EP0882004B1
公开(公告)日：2001-10-31
申请号：EP97903252.1
申请日：1997-02-10
申请人： BAYER AG
CPC分类号： C07C22/04 , C07C17/16 , C07C22/00 , C07C2601/02
摘要： In an improved process for the production of halogen methyl cyclopropanes of formula (I) in which Hal is chlorine or bromine and R1 to R5 are mutually independently hydrogen, optionally substituted C¿1?-C10 alkyl or optionally substituted C6-C10 aryl, the corresponding hydroxymethyl propanes are mixed with chlorine or bromine and an organic phosphorus compound, and chlorine or bromine is reacted in an excess of at least 5 mol % (in relation to te hydroxymethyl cyclopropane). It is thus possible to obtain highly pure products containing little 1-halogen-3-butene.
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4.发明公开
公开(公告)号：EP0935600A1
公开(公告)日：1999-08-18
申请号：EP97913157.0
申请日：1997-10-17
申请人： BAYER AG
CPC分类号： C07D471/04 , C07D211/84 , C07D213/26 , C07D213/61
摘要： An advantageous method of producing naphthyridine compounds of formulae (Ia) to (1c) wherein R means hydrogen or C1-C4 alkyl, Ar means possibly substituted phenyl, Hal means independently fluorine, chlorine or bromine, and n stands for 1, 2 or 3, whereby a halogenated nicotinic, isonicotinic or picolinic acid is made to react with an amino acrylic acid ester to obtain a halogenated 2-nicotinoyl-, isonicotinoyl- or picolinoyl-3-aminoacrylate which is made to react with an optionally substituted aniline to obtain a halogenated 2-nicotinoyl-, isonicotinoyl- or picolinoyl-3-aminoacrylate which contains an amino group corresponding to the optionally substituted aniline. The second halogenated 2-nicotinoyl-, isonicotinoyl- or picolinoyl-3-aminoacrylate is cyclized by adding an acid scavenger to a compound of formulae (Ia) to (Ic) with R = C1-C4 alkyl and, in the case of production of a compound of formulae (Ia) to (Ic) with R = H, the compound of the formulae (Ia) to (Ic) with R = C1-C4 alkyl is saponified.
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公开(公告)号：EP0807099B1
公开(公告)日：1998-07-15
申请号：EP96901747.4
申请日：1996-01-22
申请人： BAYER AG
摘要： Nucleus-halogenated benzoyl chlorides are obtained in a particularly advantageous manner by reacting nucleus-halogenated benzotrichlorides with formic acid in the presence of iron salts.
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