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Machine translation
1. (WO2011018180) METHOD FOR PRODUCING 2,4-DIOXOTETRAHYDROFURANE-3-CARBOXYLATES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/018180    International Application No.:    PCT/EP2010/004777
Publication Date: 17.02.2011 International Filing Date: 04.08.2010
IPC:
C07D 307/60 (2006.01)
Applicants: BAYER CROPSCIENCE AG [DE/DE]; Alfred-Nobel-Str. 50 40789 Monheim (DE) (For All Designated States Except US).
LUI, Norbert [DE/DE]; (DE) (For US Only).
HEINRICH, Jens-Dietmar [DE/DE]; (DE) (For US Only).
FUNKE, Christian [DE/DE]; (DE) (For US Only)
Inventors: LUI, Norbert; (DE).
HEINRICH, Jens-Dietmar; (DE).
FUNKE, Christian; (DE)
Common
Representative:
BAYER CROPSCIENCE AG [DE/DE]; Business Services and Administration Law and Patents, Patents and Licensing Alfred-Nobel-Str. 50 40789 Monheim (DE)
Priority Data:
09167593.4 11.08.2009 EP
Title (DE) VERFAHREN ZUM HERSTELLEN VON 2,4-DIOXOTETRAHYDROFURAN-3-CARBOXYLATEN
(EN) METHOD FOR PRODUCING 2,4-DIOXOTETRAHYDROFURANE-3-CARBOXYLATES
(FR) PROCÉDÉ DE PRODUCTION DE 2,4-DIOXOTÉTRAHYDROFURANE-3-CARBOXYLATES
Abstract: front page image
(DE)Verfahren zur Herstellung von 2,4-Dioxotetrahydrofuran-3-carboxylaten der Formel (I) bzw. (I') umfassend das Umsetzen einer Halogenacetylchloridverbindung der Formel (II) mit einem Malonsäureester der Formel (III) worin HaI, R1 und R2 die in der Anmeldung genannten Bedeutungen haben, in Gegenwart einer geeigneten Base und gegebenenfalls in Gegenwart eines Lösungsmittels; das Zugeben einer ausreichenden Menge an Wasser zum Reaktionsgemisch; und das Abtrennen des gewünschten 2,4-Dioxotetrahydrofuran-3-carboxylats.
(EN)The invention relates to a method for producing 2,4-dioxotetrahydrofurane-3-carboxylates of the formula (I) or (I') comprising the conversion of a halogen acetyl chloride compound of the formula (II) with a malonic acid ester of the formula (III) where HaI, R1 and R2 have the meanings given in the application, in the presence of a suitable base and, optionally, in the presence of a solvent; adding a sufficient amount of water to the reaction mixture; and separating the desired 2,4-dioxotetrahydrofurane-3-carboxylate.
(FR)Procédé de production de 2,4-dioxotétrahydrofurane-3-carboxylates de la formule (I) ou (I') comprenant la réaction d'un composé de chlorure d'halogènacétyle de la formule (II) avec un ester d'acide malonique de la formule (III) où HaI, R1 et R2 ont les significations indiquées dans la demande, en présence d'une base appropriée et éventuellement en présence d'un solvant; l'ajout d'une quantité suffisante d'eau au mélange de réaction; et la séparation du 2,4-dioxotétrahydrofurane-3-carboxylate souhaité.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, 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 (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, 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)