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Machine translation
1. (WO2000059860) PROCESS FOR THE PREPARATION OF VITAMIN A, INTERMEDIATES, AND PROCESS FOR THE PREPARATION OF THE INTERMEDIATES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/059860    International Application No.:    PCT/JP2000/002146
Publication Date: 12.10.2000 International Filing Date: 03.04.2000
IPC:
C07C 67/287 (2006.01)
Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED [JP/JP]; 5-33, Kitahama 4-chome, Chuo-ku, Osaka-shi, Osaka 541-8550 (JP) (For All Designated States Except US).
TAKAHASHI, Toshiya [JP/JP]; (JP) (For US Only).
FURUTANI, Atsushi [JP/JP]; (JP) (For US Only).
SEKO, Shinzo [JP/JP]; (JP) (For US Only)
Inventors: TAKAHASHI, Toshiya; (JP).
FURUTANI, Atsushi; (JP).
SEKO, Shinzo; (JP)
Agent: JINNO, Naoyoshi; Sumitomo Chemical Company, Limited, Intellectual Property Dept., 5-33, Kitahama 4-chome, Chuo-ku, Osaka-shi, Osaka 541-8550 (JP)
Priority Data:
11/97569 05.04.1999 JP
11/140294 20.05.1999 JP
Title (EN) PROCESS FOR THE PREPARATION OF VITAMIN A, INTERMEDIATES, AND PROCESS FOR THE PREPARATION OF THE INTERMEDIATES
(FR) PROCEDE DE PREPARATION DE LA VITAMINE A, DE PRODUITS INTERMEDIAIRES, ET PROCEDE DE PREPARATION DE CES PRODUITS INTERMEDIAIRES
Abstract: front page image
(EN)Dihalogenated derivatives represented by general formula (2); a process for the preparation of the derivatives; and a process for the preparation of vitamin A by the use of the derivative, wherein X is halogeno; and R?2¿ is a hydroxyl-protecting group.
(FR)L'invention concerne des dérivés dihalogénés représentés par la formule (2); un procédé de préparation de ces dérivés et un procédé de préparation de la vitamine A à l'aide des dérivés de la formule (2) où X est un halogène et R?2¿ représente un groupe de protection d'hydroxyle.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)