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Pub. No.:    WO/1997/021699    International Application No.:    PCT/GB1996/003002
Publication Date: 19.06.1997 International Filing Date: 06.12.1996
A01N 43/26 (2006.01), C07D 317/04 (2006.01)
Applicants: ZENECA LIMITED [GB/GB]; 15 Stanhope Gate, London W1Y 6LN (GB) (For All Designated States Except US).
BLOODWORTH, Allan, John [GB/GB]; (GB) (For US Only).
MAIDWELL, Nicola, Louise [GB/GB]; (GB) (For US Only).
COLLINS, Andrew, Neale [GB/GB]; (GB) (For US Only).
BOTHWELL, Brian, David [GB/GB]; (GB) (For US Only)
Inventors: BLOODWORTH, Allan, John; (GB).
MAIDWELL, Nicola, Louise; (GB).
COLLINS, Andrew, Neale; (GB).
BOTHWELL, Brian, David; (GB)
Agent: FAWKES, David, Melville; Zeneca Specialties, Intellectual Property Group, Hexagon House, P.O. Box 42, Blackley, Manchester M9 8ZS (GB)
Priority Data:
9525234.2 09.12.1995 GB
Abstract: front page image
(EN)A process for making a 1,2-dioxolane of formula (1), which comprises reacting a dienoic acid or derivative of formula (2), with a peroxy compound in the presence of a mercury salt followed by demercuration wherein R is aryl, aralkyl, C¿1-30?-alkyl or alkenyl which may be substituted; R?1¿ and R?2¿ are each, independently, hydrogen, C¿1-6?-alkyl, aralkyl or R?1¿ and R together with the carbon atom to which they are attached form a ring; R?3¿ is -OR?4¿ or -NR?5¿R?6¿; R?4¿ is hydrogen, C¿1-6?-alkyl, aryl or aralkyl; and R?5¿ and R?6¿ are each, independently, hydrogen, C¿1-6?-alkyl, aralkyl or R?5¿ and R?6¿ together with the nitrogen atom to which they are attached form a ring.
(FR)Procédé de production d'un 1,2-dioxolane de formule (1) qui consiste à faire réagir un acide diénoïque ou un dérivé de formule (2) avec un composé peroxy en présence d'un sel de mercure puis à procéder à une démercuration. Dans les formules (1) et (2), R représente alkyle, aralkyle, alkyle C¿1-30? ou alkyle pouvant être substitué; R?1¿ et R?2¿ représentent chacun indépendamment, alkyle C¿1-6?, alkyxle ou bien R?1¿ et R forment ensemble un anneau, avec l'atome de carbone auquel ils sont attachés; R?3¿ représente -OR?4¿ ou -NR?5¿R?6¿; R?4¿ représente hydrogène, alkyle C¿1-6?, aryle ou aralkyle; et R?5¿ et R?6¿ représentent chacun indépendamment hydrogène, alkyle C¿1-6?, aralkyle ou bien R?5¿ et R?6¿ forment ensemble un anneau, avec l'atome d'azote auquel ils sont attachés.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN.
African Regional Intellectual Property Organization (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, 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, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)