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1. (WO1991009005) PROCESS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009005 International Application No.: PCT/GB1990/001922
Publication Date: 27.06.1991 International Filing Date: 10.12.1990
Chapter 2 Demand Filed: 18.06.1991
IPC:
C07C 67/03 (2006.01) ,C07C 69/653 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
67
Preparation of carboxylic acid esters
03
by reacting an ester group with a hydroxy group
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
69
Esters of carboxylic acids; Esters of carbonic or haloformic acids
62
Halogen-containing esters
65
of unsaturated acids
653
Acrylic acid esters; Methacrylic acid esters; Haloacrylic acid esters; Halomethacrylic acid esters
Applicants:
SMITH KLINE & FRENCH LABORATORIES LIMITED [GB/GB]; Mundells Welwyn Garden City Hertfordshire AL7 1EY, GB
Inventors:
LEWIS, Norman, John; GB
WELLS, Andrew, S.; GB
Agent:
GIDDINGS, P., J.; SmithKline Beecham, Corporate Patents Mundells, Welwyn Garden City Hertfordshire AL7 1EY, GB
Priority Data:
449,01311.12.1989US
Title (EN) PROCESS
(FR) PROCEDE
Abstract:
(EN) A process for preparing compounds of structure (I), in which R is C1-4alkyl, n is 1 to 20, and X is halogen, which comprises transesterification of a C1-4alkyl methacrylate, with a haloalkanol of structure HO(CH2)nX in which n and X are as described for structure (I), in the presence of a titanium tetraC1-4alkoxide or a dialkyltin oxide catalyst, and a stabiliser.
(FR) Selon un procédé de préparation de composés ayant la strucutre (I), dans laquelle R représente C1-4alkyle, n est compris entre 1 et 20 et X est un halogène, du méthacrylate de C1-4alkyle est transestérifié avec un haloalcanol ayant la strucutre HO(CH2)nX, dans laquelle n et X ont la même signification que dans la structure (I), en présence d'un tétraC1-4alkoxyde de titane ou oxyde de dialkyltine catalyseur, ainsi que d'un stabilisateur.
Designated States: AU, CA, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0505406JPH05502666CA2073007PT96146KR1019927003505AU1991068939