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公开(公告)号:DK0823890T3
公开(公告)日:2000-05-01
申请号:DK96914977
申请日:1996-04-23
Applicant: BASF AG
Inventor: OBERDORF KLAUS , GRAMMENOS WASSILIOS , SAUTER HUBERT , GITZ NORBERT
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.
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公开(公告)号:DK0775107T3
公开(公告)日:1999-12-27
申请号:DK95930419
申请日:1995-07-28
Applicant: BASF AG
Inventor: HARREUS ALBRECHT , RANG HARALD , GITZ NORBERT , MOHR JUERGEN , HARTMANN HORST , GEHRER EUGEN , LAUTH GUENTER
IPC: B01J31/02 , C07B61/00 , C07C249/12 , C07C251/38 , C07C251/44 , C07C251/54
Abstract: Preparation of O-(2-hydroxyalkyl) oximes of formula (I), (R and R are alkyl or R and R and the common C atom are 5-membered to 7-membered cycloalkyl; R is alkyl) by causing a ketoxime II to react with an olefin oxide III in the presence of a tertiary amine or with a carbonate IV in the presence of a catalyst. The end products (I) are suitable for use as intermediates for crop protection agents.
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公开(公告)号:DK0793645T3
公开(公告)日:1999-10-25
申请号:DK95938441
申请日:1995-11-10
Applicant: BASF AG
Inventor: M LLER BERND , M LLER RUTH , RIHL FRANZ , AMMERMANN EBERHARD , LORENZ GISELA , GITZ NORBERT , BAYER HERBERT , SAUTER HUBERT
IPC: A01N37/22 , A01N37/34 , A01N47/20 , A01N47/24 , A01N47/30 , A01N47/40 , A01P3/00 , A01P7/04 , C07C20060101 , C07C205/34 , C07C239/08 , C07C251/58 , C07C255/64 , C07C259/06 , C07C269/06 , C07C271/28 , C07C271/38 , C07C271/58 , C07C271/60 , C07C273/18 , C07C275/64 , C07C317/26 , C07C317/28 , C07C323/18 , C07C323/23 , C07C327/38 , C07C327/42 , C07D213/56 , C07D239/24 , C07D241/10 , C07D521/00
Abstract: PCT No. PCT/EP95/04428 Sec. 371 Date May 6, 1997 Sec. 102(e) Date May 6, 1997 PCT Filed Nov. 10, 1995 PCT Pub. No. WO96/16030 PCT Pub. Date May 30, 1996Iminooxymethyleneanilides of the formula I where the substituents and the index have the following meanings: R is hydrogen, unsubst. or subst. alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, alkylcarbonyl or alkoxycarbonyl; R1 is alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl and in the case where X is NRa, additionally hydrogen; X is a direct bond, O or NRa; Ra is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl; R2 is cyano, nitro, trifluoromethyl, halogen, alkyl or alkoxy; n is 0, 1 or 2; R3 is hydrogen, hydroxyl, cyano, cyclopropyl, trifluoromethyl, halogen, alkyl, alkoxy or alkylthio; R4 is hydrogen, hydroxyl, halogen, alkyl, haloalkyl, alkoxy, alkylthio, unsubstituted or substituted cycloalkyl, heterocyclyl, aryl, arylalkyl, hetaryl or hetarylalkyl; R5 is hydrogen, unsubstituted or substituted alkyl, cycloalkyl, alkenyl, alkynyl, alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl or alkylsulfonyl, unsubstituted or substituted aryl, hetaryl, arylcarbonyl, hetarylcarbonyl, arylsulfonyl or hetarylsulfonyl; and their salts, processes and intermediates for their preparation and compositions containing them.
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