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    Process and intermediate products for preparing substantially isomer-pure E-2-(2-aryloxymethylene phenyl)-crotonic acid methyl esters
    141.
    发明专利
    Process and intermediate products for preparing substantially isomer-pure E-2-(2-aryloxymethylene phenyl)-crotonic acid methyl esters 未知

    公开(公告)号：AU704131B2

    公开(公告)日：1999-04-15

    申请号：AU5691896

    申请日：1996-04-23

    Applicant: BASF AG

    Inventor： GRAMMENOS WASSILIOS ,  GOTZ NORBERT ,  SAUTER HUBERT ,  OBERDORF KLAUS

    IPC: C07C67/327 ,  C07C67/333 ,  C07C67/343 ,  C07C69/734

    Abstract: PCT No. PCT/EP96/01689 Sec. 371 Date Oct. 9, 1997 Sec. 102(e) Date Oct. 9, 1997 PCT Filed Apr. 23, 1996 PCT Pub. No. WO96/34847 PCT Pub. Date Nov. 7, 1996A process for the preparation of essentially isomerically pure methyl E-2-(2-aryloxymethylenephenyl)crotonates of the formula Ia Ia where R is an aromatic radical and R' is a C1-C3-alkyl group, which comprises first converting a suitable methyl 2-(2-aryloxymethylenephenyl)- alpha -ketoacetate with an alkyl metal compound of the formula IIIM-CH2-R'IIIwhere M is a metal ion equivalent into the corresponding methyl 2-(2-aryloxymethylenephenyl)- alpha -hydroxybutyrate of the formula IV, subsequently dehydrating IV in the presence of an acid to give a mixture of methyl E- and Z-2-(2-aryloxymethylenephenyl)crotonates and, subsequently, converting this mixture in the presence of a base in an inert polar solvent into the essentially isomerically pure methyl E-2-(2-aryloxymethylenephenyl)crotonate Ia.

    145.
    发明专利
    未知

    公开(公告)号：DE59503946D1

    公开(公告)日：1998-11-19

    申请号：DE59503946

    申请日：1995-11-07

    Applicant: BASF AG

    Inventor： KIRSTGEN REINHARD ,  OBERDORF KLAUS ,  SCHUETZ FRANZ ,  THEOBALD HANS ,  HARRIES VOLKER

    IPC: C07D239/54 ,  A01N43/54 ,  A01P7/02 ,  C07D239/52 ,  C07D239/56

    Abstract: PCT No. PCT/EP95/04375 Sec. 371 Date May 6, 1997 Sec. 102(e) Date May 6, 1997 PCT Filed Nov. 7, 1995 PCT Pub. No. WO96/16047 PCT Pub. Date May 30, 19962-[(2-Alkoxy-6-trifluoromethylpyrimidin-4-yl)oxymethylene]-phenylacetic acid derivatives of the formula I where the index and the substituents have the following meanings: U is CH or N; V is O or NH; R is alkyl; R1 is cyano, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or phenyl; n is 0 or an integer from 1 to 4, processes and intermediates for their preparation, and their use are described.

    DERIVADOS DE ACIDO FENILACETICO, PROCEDIMIENTOS PARA SU OBTENCION Y SU USO.
    146.
    发明专利
    DERIVADOS DE ACIDO FENILACETICO, PROCEDIMIENTOS PARA SU OBTENCION Y SU USO. 未知

    公开(公告)号：MX9801911A

    公开(公告)日：1998-10-31

    申请号：MX9801911

    申请日：1998-03-11

    Applicant: BASF AG

    Inventor： MULLER BERND ,  SAUTER HUBERT ,  BAYER HERBERT ,  GRAMMENOS WASSILIOS ,  GROTE THOMAS ,  KIRSTGEN REINHARD ,  OBERDORF KLAUS ,  ROHL FRANZ ,  GOETZ NORBERT

    IPC: C07C249/16 ,  A01N35/10 ,  A01N37/50 ,  A01N43/40 ,  A01N43/80 ,  A01N59/12 ,  C07C251/88 ,  C07D213/53 ,  C07D261/08

    Abstract: Derivados del ácido fenilacético de la formula I (Ver Formula) en la que los sustituyentes y el índice tienen los siguientes significados: X NOCH3, CHOCH3 und CHCH3; Y oxígeno o NRa; Ra hidrogeno o alquilo; R ciano, nitro, Trifluormetil, halogeno, alquil und alcoxi, m 0, 1 o 2, pudiendo los radicales R ser diferentes cuando m es igual a 2; R1 hidrogeno o alquilo; R2 y R3, cada uno independientemente del otro, hidrogeno, ciano, nitro, hidroxi, amino, halogeno, alquilo event, sust., alcoxi, alquiltio, alquilamino, dialquilamino, alquenilo, alqueniloxi, alqueniltio, alquenilamino, N-alquenil-N-alquilamino, alquinilo, alquiniloxi, alquiniltio, alquinilamino, N-alquinil-N-alquilamino, cicloalquilo, cicloalquiloxi, cicloalquiltio, cicloalquilamino, N-cicloalquil-N-alquilamino, cicloalquenilo, cicloalqueniloxi, cicloalqueniltio, cicloalquenilamino, N-cicloalquenil-N-alquilamino, heterociclilo, heterocicliloxi, heterocicliltio, heterociclilamino, N-heterociclil-N-alquilamino, arilo, ariloxi, ariltio, arilamino, N-aril-N-alquilamino, hetarilo, hetariloxi, hetariltio, hetarilamino y N-hetaril-N-alquilamino. R4 uno de los grupos mencionados para R2 o un grupo CRd=NORe; Rd uno de los grupos mencionados para R2; Re hidrogeno, alquilo event, sust., cicloalquilo, alquenilo, alquinilo, alquilcarbonilo, alquenilcarbonilo, alquinilcarbonilo, alquilsulfonilo, arilo, arilcarbonilo, arilsulfonilo, hetarilo, hetarilcarbonilo o hetarilsulfonilo, así como sus sales, procedimientos para su obtencion y el uso de los mismos.

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