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1. (WO2007006720) METHOD FOR PRODUCING SUBSTITUTED 1,3-DIFLUOROBENZENE DERIVATIVES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/006720 International Application No.: PCT/EP2006/063959
Publication Date: 18.01.2007 International Filing Date: 06.07.2006
IPC:
C07C 67/343 (2006.01) ,C07C 69/738 (2006.01) ,C07C 69/732 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
67
Preparation of carboxylic acid esters
30
by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
333
by isomerisation; by change of size of the carbon skeleton
343
by increase in the number of carbon atoms
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
69
Esters of carboxylic acids; Esters of carbonic or haloformic acids
66
Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, -CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
73
of unsaturated acids
738
Esters of keto-carboxylic acids
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
69
Esters of carboxylic acids; Esters of carbonic or haloformic acids
66
Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, -CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
73
of unsaturated acids
732
of unsaturated hydroxy carboxylic acids
Applicants:
BASF AKTIENGESELLSCHAFT [DE/DE]; 67056 Ludwigshafen, DE (AllExceptUS)
GÖTZ, Norbert [DE/DE]; DE (UsOnly)
MAYWALD, Volker [DE/DE]; DE (UsOnly)
KEIL, Michael [DE/DE]; DE (UsOnly)
Inventors:
GÖTZ, Norbert; DE
MAYWALD, Volker; DE
KEIL, Michael; DE
Common
Representative:
BASF AKTIENGESELLSCHAFT; 67056 Ludwigshafen, DE
Priority Data:
10 2005 033 144.013.07.2005DE
Title (DE) VERFAHREN ZUR HERSTELLUNG VON SUBSTITUIERTEN 1,3-DIFLUORBENZOLDERIVATEN
(EN) METHOD FOR PRODUCING SUBSTITUTED 1,3-DIFLUOROBENZENE DERIVATIVES
(FR) PROCEDE DE FABRICATION DE DERIVES DIFLUOROBENZOL 1,3-SUBSTITUES
Abstract:
(DE) Verfahren zur Herstellung von 1,3-Difluorbenzolderivaten der Formel (I) in der X für CO-COOR oder C(OH)(COOR)2, wobei R für Alkyl steht, und Y Halogen, Alkyl oder Halogenalkyl bedeutet, dadurch gekennzeichnet, dass man eine 1 ,3-Difluorbenzolverbindung der Formel (II) mit einer Alkyllithiumverbindung und das entstandene 1 ,3-Difluorphenyllithium der Formel (IIa) mit einer Carbonylverbindung der Formel (III), wobei Y OR oder COOR bedeutet, umsetzt.
(EN) The invention relates to a method for producing the substituted 1,3-difluorobenzene derivatives of formula (I) wherein X represents CO-COOR or C(OH)(COOR)2, wherein R represents alkyl, and Y represents halogen, alkyl or halogenalkyl. The inventive method is characterized by reacting a 1,3-difluorobenzene compound of formula (II) with an alkyl lithium compound and the resulting 1,3-difluorophenyllithium of formula (IIa) with a carbonyl compound of formula (III), wherein Y represents OR or COOR.
(FR) L'invention concerne un procédé de fabrication de dérivés 1,3-difluorobenzol représentés par la formule (I) dans laquelle X est CO-COOR ou C(OH)(COOR)2 (R étant alkyl), et Y est halogène, alkyl ou halogénoalkyl. Le procédé est caractérisé en ce qu'on fait réagir un composé 1,3-difluorobenzol représenté par la formule (II) avec un composé alkyllithium et le 1,3-difluorophényllithium ainsi formé, représenté par la formule (IIa), avec un composé carbonyl représenté par la formule (III) (Y étant OR ou COOR).
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)