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1. (WO2011146308) METHODS OF MAKING FUSED THIOPHENES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/146308    International Application No.:    PCT/US2011/036180
Publication Date: 24.11.2011 International Filing Date: 12.05.2011
IPC:
C07D 495/22 (2006.01)
Applicants: CORNING INCORPORATED [US/US]; 1 Riverfront Plaza Corning, New York 14831 (US) (For All Designated States Except US).
HE, Mingqian [US/US]; (US) (For US Only).
HU, Jieyu [CN/US]; (US) (For US Only).
MATTHEWS, James, R. [US/US]; (US) (For US Only).
NIU, Weijun [CN/US]; (US) (For US Only)
Inventors: HE, Mingqian; (US).
HU, Jieyu; (US).
MATTHEWS, James, R.; (US).
NIU, Weijun; (US)
Agent: HAACK, John, L.; Corning Incorporated SP-Ti-3-1 Intellectual Property Department Corning, New York 14831 (US)
Priority Data:
12/782,055 18.05.2010 US
Title (EN) METHODS OF MAKING FUSED THIOPHENES
(FR) PROCÉDÉS DE PRÉPARATION DE THIOPHÈNES CONDENSÉS
Abstract: front page image
(EN)β''-di-R-substituted fused thiophene (DCXFT4) compounds, and a method for making a compound of the formula (V) where each R is a C4 to C25 hydrocarbylene, the method including di-acylating tetra-bromo dithiophene (I); contacting the bromo-dithiophene compound (II) with a 2-mercaptoacetate to form cyclized fused thiophene (III); converting fused thiophene (III) to the corresponding diacid (IV); and decarboxylating the diacid (IV) to the fused thiophene (V), of the formulas as defined herein.
(FR)La présente invention concerne des composés thiophènes condensés β"-di-R-substitués (DCXFT4), et un procédé de préparation d'un composé de formule (V) dans laquelle chaque R est un groupe hydrocarbylène en C4 à C25, ledit procédé consistant à diacyler le tétra-bromo-dithiophène (I); à mettre en contact le composé bromo-dithiophène (II) avec un 2-mercaptoacétate pour former le thiophène condensé cyclisé (III); à convertir le thiophène condensé (III) en diacide (IV) correspondant; et à décarboxyler le diacide (IV) pour donner le thiophène condensé (V), dont les formules sont telles que définies dans la description.
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, RS, 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: English (EN)
Filing Language: English (EN)