NEUES VERFAHREN ZUR HERSTELLUNG VON BETA-ALKOXYACRYLSÄURE

NEUES VERFAHREN ZUR HERSTELLUNG VON BETA-ALKOXYACRYLSÄURE

PCT No. PCT/FR94/00418 Sec. 371 Date Oct. 3, 1995 Sec. 102(e) Date Oct. 3, 1995 PCT Filed Apr. 14, 1994 PCT Pub. No. WO94/24085 PCT Pub. Date Oct. 27, 1994A method for prerparing compounds of formula (I), wherein R is an optionally substituted alkenyl or alkynyl radical having up to 8 carbon atoms,...

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Hauptverfasser: BRAYER, JEAN-LOUIS, F-60440 NANTEUIL-LE-HAUDOUIN, FR, HODGSON, DAVID, MICHAEL UNIVERSITY OF READIN, READING BARKSHIRE, GB, RICHARDS, IAN, CHRISTOPHER CHESTERFORD PARK, ESSEX CB10 1XL, GB, WITHERINGTON, JASON UNIVERSITY OF READING, READING BARKSHIRE, GB
Format: Patent
Sprache:ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:PCT No. PCT/FR94/00418 Sec. 371 Date Oct. 3, 1995 Sec. 102(e) Date Oct. 3, 1995 PCT Filed Apr. 14, 1994 PCT Pub. No. WO94/24085 PCT Pub. Date Oct. 27, 1994A method for prerparing compounds of formula (I), wherein R is an optionally substituted alkenyl or alkynyl radical having up to 8 carbon atoms, or an optionally substituted mono- or polycyclic aryl or heteroaryl radical, and R1 and R2 are an alkyl radical having up to 4 carbon atoms. According to the method, a compound of the formula (II), wherein X is a halogen atom, is exposed to an organometallic compound of the formula (III): RZ, wherein R has the same meaning as before and Z is a metal or metal derivative. Alternatively, a compound of formula (II'), wherein Z' is a metal or metal derivative, is exposed to a compound of the formula (III'): RX', wherein X' is a nucleophilic reaction leaving group. (I) (II) (II1)