Patent SG-11201903249R-A (SG)
Title: A process for the production of ethylenically unsaturated carboxylic acid esters and a catalyst therefor
Inventor: EASTHAM GRAHAM RONALD
IPC: C07C69/54
Filed: 2017-10-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date ill Hu omits 1E 1 0 0111 INIE110 ill DEEM 011 (10) International Publication Number WO 2018/069702 Al 19 April 2018 (19.04.2018) WIP0 1 PCT (51) International Patent Classification: CO7C 67/343 (2006.01) CO7C 69 / 5 4 (2006.01) (21) International Application Number: PCT/GB2017/053075 (22) International Filing Date: 11 October 2017 (11.10.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1617534.1 14 October 2016 (14.10.2016) GB (71) Applicant: LUCITE INTERNATIONAL UK LIMITED [GB/GB]; Cassel Works, New Road, Billingham TS23 1LE (GB). (72) Inventors: EASTHAM, Graham Ronald; Wilton Centre, Wilton, Redcar TS10 4RF (GB). IGGO, Jonathan Ains- ley; Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD (GB). BEAUMONT, Michael; Department of Chemistry, University of Liver- pool, Crown Street, Liverpool L69 7ZD (GB). (74) Agent: APPLEYARD LEES IP LLP; 15 Clare Road, Hal- ifax West Yorkshire HX1 2HY (GB). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) © (54) Title: A PROCESS FOR THE PRODUCTION OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACID ESTERS AND IN A CATALYST THEREFOR (57) : A process for the production of an ethylenically unsaturated carboxylic acid ester, preferably an ct,B ethylenically unsaturated carboxylic acid ester is described. The process takes place by the reaction of formaldehyde or a suitable source thereof with a carboxylic acid ester in the presence of a basic metal methyl carbonate co-reactant, wherein the process produces a second basic metal 1-1 © salt and wherein the process includes the step of contacting the second basic metal salt with: a)carbon dioxide (CO2) and optionally, N methanol, and/or b)dimethyl carbonate, to regenerate the basic metal methyl carbonate co-reactant. The invention includes use of carbon 0 dioxide and/or dimethyl carbonate to regenerate a basic metal methyl carbonate.