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1. (WO2011015101) PROCESS FOR SEPARATING 5-HYDROXY-4-METHYL-2-5[H]-FURANONE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/015101    International Application No.:    PCT/CN2010/075274
Publication Date: 10.02.2011 International Filing Date: 20.07.2010
IPC:
C07C 7/10 (2006.01), C07D 307/58 (2006.01)
Applicants: CHONGQING HUABANGSHENGKAI PHARM. CO., LTD [CN/CN]; No. 666 Rongjun Road, Nanjin Street Sub-district Hechuan District Chongqing 401520 (CN) (For All Designated States Except US).
CHONGQING HUAPONT PHARM. CO., LTD [CN/CN]; No. 69 Xingguang Avenue, Renhe, Yubei District Chongqing 401121 (CN) (For All Designated States Except US).
DENG, Qingjun [CN/CN]; (CN) (For US Only).
YANG, Yujin [CN/CN]; (CN) (For US Only)
Inventors: DENG, Qingjun; (CN).
YANG, Yujin; (CN)
Agent: HAIHONG JIACHENG INTELLECTUAL PROPERTY & PARTNERS; Room 902, Zhikai Building No. 283 Beisihuan Zhonglu, Haidian District Beijing 100083 (CN)
Priority Data:
200910089166.4 05.08.2009 CN
Title (EN) PROCESS FOR SEPARATING 5-HYDROXY-4-METHYL-2-5[H]-FURANONE
(FR) PROCÉDÉ DE SÉPARATION DE 5-HYDROXY-4-MÉTHYL-2-5[H]-FURANONE
(ZH) 一种5-羟基-4-甲基-2-5[H]-呋喃酮的分离方法
Abstract: front page image
(EN)Disclosed is a process for separating 5-hydroxy-4-methyl-2-5[H]-furanone produced by glyoxylic acid and n-propionaldehyde as starting materials, characterized in that the extraction separation is carried out with an organic solvent in the presence of mineral salts.
(FR)L'invention porte sur un procédé de séparation de 5-hydroxy-4-méthyl-2-5[H]-furanone qui est produite à partir d'acide glyoxylique et de n-propionaldéhyde comme matières de départ. Ledit procédé est caractérisé en ce que la séparation par extraction est effectuée avec un solvant organique en présence de sels minéraux.
(ZH)用乙醛酸和正丙醛为原料制备 5-羟基-4-甲基-2-5[H]-呋喃酮时,5-羟基-4-甲基 -2-5[H]-呋喃酮产物的分离方法,其特征在于在无机盐存在下,采用有机溶剂进行萃取分离。
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: Chinese (ZH)
Filing Language: Chinese (ZH)