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    22.
    发明专利
    未知

    公开(公告)号：AT373634T

    公开(公告)日：2007-10-15

    申请号：AT03720564

    申请日：2003-05-12

    Applicant: BASF AG

    Inventor： HEIDENFELDER THOMAS ,  BECK KARL

    IPC: C07C227/38 ,  C07C227/42 ,  C07B61/00 ,  C07C227/00 ,  C07C227/18 ,  C07C227/40 ,  C07C229/52

    Abstract: Production of 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid esters comprises reaction of a 3-N,N-dialkylaminophenol with phthalic acid anhydride to form a 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid, esterification with a 1-12C alcohol or cyclic 3-10 C alcohol in the presence of an acid catalyst. A process for the production of 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid esters (I) of formula (1) comprises: (a) reaction of a 3-N,N-dialkylaminophenol of formula (2) with phthalic acid anhydride to form a 2-(4-N,N-dialkylamino-2-hydroxybenzoyl)benzoic acid of formula (3) followed by; (b) esterification with a 1-12C alcohol or cyclic 3-10 C alcohol in the presence of an acid catalyst to form the ester (I) of formula (1) whereby the product ester is purified in a step; (c) by treatment with an adsorbent and/or by distillation. R1, R2 = 1-6C alkyl or 3-10C cycloalkyl; R3 = 1-12C alkyl or 3-10C cycloalkyl.

    23.
    发明专利
    未知

    公开(公告)号：DE102005027568A1

    公开(公告)日：2006-12-21

    申请号：DE102005027568

    申请日：2005-06-14

    Applicant: BASF AG

    Inventor： WITTELER HELMUT ,  BERTKAU WALTER ,  HEIDENFELDER THOMAS ,  GOETHLICH ALEXANDER

    IPC: C23C22/12

    Abstract: Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax.

    29.
    发明专利
    未知

    公开(公告)号：DE10124332A1

    公开(公告)日：2002-11-21

    申请号：DE10124332

    申请日：2001-05-18

    Applicant: BASF AG

    Inventor： HEIDENFELDER THOMAS ,  TIEFENSEE KRISTIN ,  WUENSCH THOMAS

    IPC: A61K8/00 ,  A61K8/49 ,  A61K31/53 ,  A61P17/16 ,  A61Q17/04 ,  A61Q19/00 ,  C07D251/70 ,  A61K7/42

    Abstract: Tris-(2,2-di-substituted ethenylamino)-triazines (IA), with cyano, substituted carbonyl, optionally substituted aminocarbonyl or optionally esterified carboxyl, sulfo, sulfonyl and/or phosphono substituents, are new. Tris-(2,2-di-substituted ethenylamino)-triazines (IA) of formula (I) with specified substituents are new: Y = hydrogen (H); X = -CR =CR R ; R , R = -COOR , -COR , -CON(R )2, -CN, -SO2R , -SO2OR or -PO(OR )2; or R ,R = together form a ring; R = H or an optionally substituted (cyclo)aliphatic, araliphatic or aromatic group; R = H or an optionally substituted (cyclo)aliphatic, araliphatic or aromatic group. An Independent claim is also included for the use of enaminotriazines of formula (I) as ultraviolet (UV) filters in cosmetic or pharmaceutical formulations for protecting human skin or hair from sunlight, alone or with known UV-absorbing compounds for cosmetic formulations, in which (I) have the following definitions: Y = H or an optionally substituted (cyclo)aliphatic, araliphatic or aromatic group with up to 18 C atoms; X = -CR'=CR2 in at least one case, otherwise as Y; R = cyano, optionally esterified carboxyl, substituted carbonyl, optionally substituted aminocarbonyl or an optionally esterified sulfo, sulfonyl or phosphono group or 2 adjacent R groups form a ring; R' = H or a (substituted) (cyclo)aliphatic or aromatic group with up to 18 C atoms.

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