91.
    发明专利
    未知

    公开(公告)号:NO318052B1

    公开(公告)日:2005-01-24

    申请号:NO20012470

    申请日:2001-05-18

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    94.
    发明专利
    未知

    公开(公告)号:DE50007400D1

    公开(公告)日:2004-09-16

    申请号:DE50007400

    申请日:2000-08-31

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing acid chlorides by converting carboxylic acids with carbon oxychlorides or thionyl chloride in the presence of a catalyst adduct of an N,N-disubstituted formamide of general formula (I) and carbon oxychloride or thionyl chloride. In the formula, R and R , independently from one another, mean C1- to C4-alkyl or R and R together mean a C4- or C5-alkylene chain. According to the inventive method, hydrogen chloride is added during and/or after the conversion.

    СПОСІБ ОДЕРЖАННЯ 1-ЗАМІЩЕНИХ 5- АБО 3-ГІДРОКСИПІРАЗОЛІВ

    公开(公告)号:UA67815C2

    公开(公告)日:2004-07-15

    申请号:UA01064275

    申请日:1999-11-06

    Applicant: BASF AG

    Abstract: Винахідвідноситьсядоспособуодержання 1-заміщених 5- та/або 3-гідроксипіразолівформулІ і II, відповідноде R1 означаєС1-С6алкіл, С2-С6алкеніл, С2-С6алкініл, С3-С6циклоалкілабоС1-С4алкокси, причомуцігрупиможутьбутизаміщенігалогеном, С1-С4алкокси, фенокси, С1-С6алкоксикарбонілом, С1-С6алкілтіокарбоніломабоциклічноюсистемоюз 3-14 циклічнимиатомами, причомускладнийалкіловийефір 3-алкоксіакриловоїкислотиформули III, де R2, R3 незалежноодневідодногоозначаютьС1-С6алкілабоС3-С6циклоалкіл, піддаютьвзаємодіїз гідразиномформули IV де R1 приймаєвищенаведенізначення, а) зодержаннямпризначеннірН, рівному 6-11, 5-гідроксипіразолівформулиІ, абоб) зодержаннямпризначеннірН, щодорівнює 11-14, 3-гідроксипіразолівформулиІІ.

    CONTINUOUS METHOD FOR THE PRODUCTION OF SUGAR ALCOHOLS

    公开(公告)号:AU2003288219A1

    公开(公告)日:2004-06-30

    申请号:AU2003288219

    申请日:2003-12-03

    Applicant: BASF AG

    Abstract: A continuous process for preparing sugar alcohols by catalytic hydrogenation of an aqueous solution of a saccharide, which forms the corresponding sugar alcohol on hydrogenation, in the presence of a ruthenium catalyst which is obtainable by: i) single or multiple treatment of an amorphous silicon-dioxide-based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200° C., ii) reducing the solid obtained in i) with hydrogen at from 100 to 350° C., step ii) being carried out immediately after step i), which comprises, before the hydrogenation, bringing the aqueous saccharide solution to be hydrogenated into contact with the support material.

    97.
    发明专利
    未知

    公开(公告)号:ES2209544T3

    公开(公告)日:2004-06-16

    申请号:ES99964476

    申请日:1999-06-14

    Applicant: BASF AG

    Abstract: In a process for preparing carbonyldiimidazole from imidazole and phosgene in an inert solvent, the imidazole hydrochloride which results as coupled product is removed as melt from the resulting reaction mixture by phase separation.

    98.
    发明专利
    未知

    公开(公告)号:ES2207988T3

    公开(公告)日:2004-06-01

    申请号:ES99972625

    申请日:1999-11-06

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    99.
    发明专利
    未知

    公开(公告)号:DE50006006D1

    公开(公告)日:2004-05-13

    申请号:DE50006006

    申请日:2000-08-23

    Applicant: BASF AG

    Abstract: The present invention relates to a process for the preparation of aliphatic, cycloaliphatic, araliphatic and aromatic mono- and oligoisocyanates by phosgenation of the corresponding primary amines at atmospheric pressure, which comprisesa) introducing a catalytic amount of a monoisocyanate (isocyanate a) into an inert solvent together with phosgene;b) adding the primary amine, andc) reacting the resulting reaction mixture with phosgene.

    100.
    发明专利
    未知

    公开(公告)号:AT263752T

    公开(公告)日:2004-04-15

    申请号:AT00951530

    申请日:2000-08-23

    Applicant: BASF AG

    Abstract: The present invention relates to a process for the preparation of aliphatic, cycloaliphatic, araliphatic and aromatic mono- and oligoisocyanates by phosgenation of the corresponding primary amines at atmospheric pressure, which comprisesa) introducing a catalytic amount of a monoisocyanate (isocyanate a) into an inert solvent together with phosgene;b) adding the primary amine, andc) reacting the resulting reaction mixture with phosgene.

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