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    4.
    发明专利
    未知

    公开(公告)号：DE59401372D1

    公开(公告)日：1997-02-06

    申请号：DE59401372

    申请日：1994-03-24

    Applicant: BASF AG

    Inventor： ISAK HEINZ DR ,  WETTLING THOMAS DR ,  KEIL MICHAEL DR ,  WOLF BERND DR ,  DOETZER REINHARD DR

    IPC: C07C253/14 ,  C07C255/32 ,  C07C255/40

    Abstract: A process for preparing halomethylbenzoyl cyanides I Ph-CO-CNI (Ph=phenyl radical substituted by chloromethyl or bromomethyl which, if desired, can additionally carry 1-4 further radicals) by reacting halomethylbenzoyl chlorides II Ph-CO-ClII with an alkali metal cyanide or transition metal cyanide, if appropriate in an organic diluent, and novel halomethylbenzoyl cyanides I' I' (X=halogen, C1-C4-alkyl, C1-C4-alkoxy, CF3, C1-C5-alkyl-(C1-C5-alkyl)hydroxyimino or C1-C5-alkyl-(C2-C5-alkenyl)hydroxyimino; m=0 to 4 and Y=chloromethyl or bromomethyl) are described. The halomethylbenzoyl cyanides I are important intermediates for the synthesis of plant protection agents.

    Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
    9.
    发明专利
    Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s) 未知

    公开(公告)号：DE4042283A1

    公开(公告)日：1992-07-02

    申请号：DE4042283

    申请日：1990-12-31

    Applicant: BASF AG

    Inventor： WOLF BERND DR ,  BENOIT REMY DR ,  SAUTER HUBERT DR ,  WINGERT HORST DR ,  HEPP MICHAEL DR ,  KUEKENHOEHNER THOMAS DR ,  GRAMMENOS WASSILIOS DR

    IPC: C07C51/367 ,  C07C65/24 ,  C07C69/738 ,  C07C235/34 ,  C07C249/08 ,  C07C251/48 ,  C07C253/14 ,  C07C255/17 ,  C07C317/24

    Abstract: Prepn. of E-oxime-ethers of phenylglyoxylic acid esters of formula (I) comprises (a) reacting a phenol Xm-Ph-PH in a base in the presence of a solvent to give a phenolate; (b) mixing with a lactone of formula (III); (c) distilling off solvent and reacting the mixt. at 50-250 deg.C in the melt; (d) washing with water and acid to give a 2-phenoxymethylbenzoic acid of formula (IV); Q = OH); (e) treating with phosgene or SOCl2 to give the 2-phenoxymethylbenzoyl chloride (IV; Q = Cl); (f) reacting with alkali(ne earth)metal cyanide opt. in the presence of prussic acid; (g) treating the 2-phenoxymethylbenzoyl cyanide (IV; Q = CN) with MeOH in the presence of acid to give (VIIb); (h) opt. splitting under acidic conditions to give (IV; Q = C(O)NHR) or (i) treating (IV; Q=R) with dimethyl sulphoxide in the presence of a base to give a beta ketosulphoxide (IV; Q = CH2SOCH3) and treating with a halogenating agent, and MeOH in acid to give (IV; Q = C(O)OMe); (k) reacting (IV; Q = C(O)OMe) and/or (VIIb) with O-methylhydroxylamine or its acid addn. salt to give (I). Q = R1CH2SOMe, OH, Cl, CN or C(O)NNR; X, Y = halo, 1-4C alkyl, 1-4C alkoxy or CF3; m = 0-4; n = 0-3; R = 1-4C alkyl.

    Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
    10.
    发明专利
    Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s) 未知

    公开(公告)号：DE4042273A1

    公开(公告)日：1992-07-02

    申请号：DE4042273

    申请日：1990-12-31

    Applicant: BASF AG

    Inventor： WINGERT HORST DR ,  WOLF BERND DR ,  BENOIT REMY DR ,  SAUTER HUBERT DR ,  HEPP MICHAEL DR ,  GRAMMENOS WASSILIOS DR ,  KUEKENHOEHNER THOMAS DR

    IPC: C07C51/367 ,  C07C65/24 ,  C07C69/738 ,  C07C235/34 ,  C07C249/08 ,  C07C251/48 ,  C07C253/14 ,  C07C255/17 ,  C07C317/24

    Abstract: Prepn. of E-oxime-ethers of phenylglyoxylic acid esters of formula (I) comprises (a) reacting a phenol Xm-Ph-PH in a base in the presence of a solvent to give a phenolate; (b) mixing with a lactone of formula (III); (c) distilling off solvent and reacting the mixt. at 50-250 deg.C in the melt; (d) washing with water and acid to give a 2-phenoxymethylbenzoic acid of formula (IV); Q = OH); (e) treating with phosgene or SOCl2 to give the 2-phenoxymethylbenzoyl chloride (IV; Q = Cl); (f) reacting with alkali(ne earth)metal cyanide opt. in the presence of prussic acid; (g) treating the 2-phenoxymethylbenzoyl cyanide (IV; Q = CN) with MeOH in the presence of acid to give (VIIb); (h) opt. splitting under acidic conditions to give (IV; Q = C(O)NHR) or (i) treating (IV; Q=R) with dimethyl sulphoxide in the presence of a base to give a beta ketosulphoxide (IV; Q = CH2SOCH3) and treating with a halogenating agent, and MeOH in acid to give (IV; Q = C(O)OMe); (k) reacting (IV; Q = C(O)OMe) and/or (VIIb) with O-methylhydroxylamine or its acid addn. salt to give (I). Q = R1CH2SOMe, OH, Cl, CN or C(O)NNR; X, Y = halo, 1-4C alkyl, 1-4C alkoxy or CF3; m = 0-4; n = 0-3; R = 1-4C alkyl.

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