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1. (WO2018146306) PROCESS FOR PREPARING PENTENOATE
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Pub. No.: WO/2018/146306 International Application No.: PCT/EP2018/053434
Publication Date: 16.08.2018 International Filing Date: 12.02.2018
IPC:
C07C 67/343 (2006.01) ,C07C 45/52 (2006.01) ,C07C 69/732 (2006.01) ,C07C 47/22 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
67
Preparation of carboxylic acid esters
30
by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
333
by isomerisation; by change of size of the carbon skeleton
343
by increase in the number of carbon atoms
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
45
Preparation of compounds having CO groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
51
by pyrolysis, rearrangement or decomposition
52
by dehydration and rearrangement involving two hydroxy groups in the same molecule
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
69
Esters of carboxylic acids; Esters of carbonic or haloformic acids
66
Esters of carboxylic acids having esterified carboxyl groups bound to acyclic carbon atoms and having any of the groups OH, O-metal, -CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
73
of unsaturated acids
732
of unsaturated hydroxy carboxylic acids
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
47
Compounds having -CHO groups
20
Unsaturated compounds having -CHO groups bound to acyclic carbon atoms
21
with only carbon-to-carbon double bonds as unsaturation
22
Acrylaldehyde; Methacrylaldehyde
Applicants:
PATHEON AUSTRIA GMBH & CO KG [AT/AT]; St. Peterstraße 25 4020 Linz, AT
Inventors:
KOHLS, Paul; AT
PÖCHLAUER, Peter; AT
STEINHOFER, Stefan; AT
SCHUSTER, Christian; AT
Agent:
ZIERMANN, Oliver; DE
Priority Data:
17155927.113.02.2017EP
Title (EN) PROCESS FOR PREPARING PENTENOATE
(FR) PROCÉDÉ DE PRÉPARATION DE PENTÉNOATE
Abstract:
(EN) The invention pertains to a process for preparing a compound of formula (1), wherein R1 is independently chosen from C1-C6 alkyl, cycloalkyl, aralkyl and aryl, and R2, R3 and R4 are independently chosen from hydrogen and C1-C6 alkyl, cycloalkyl, aralkyl and aryl; which process comprises the steps of: a) contacting a compound of formula (2), wherein R1 and R2 are as above and M+ is a monovalent metal ion, with a compound of formula (3), wherein R3 and R4 are as above, to form a compound of formula (4); and b) followed by contacting the compound of formula (4) with an acid to give a compound of formula (1), wherein step (a) and/or step (b) are conducted in continuous mode.
(FR) L'invention concerne un procédé de préparation d'un composé de formule (1), dans laquelle R1 est indépendamment choisi parmi un alkyle en C1-C6, cycloalkyle, aralkyle et un aryle, et R2, R3 et R4 sont indépendamment choisis parmi l'hydrogène et l'alkyle en C1-C6, cycloalkyle, aralkyle et aryle ; le procédé de l'invention comprend les étapes consistant à : a) mettre en contact un composé de formule (2), dans laquelle R1 et R2 sont tels que définis ci-dessus et M+ est un ion métallique monovalent, avec un composé de formule (3), dans laquelle R3 et R4 sont tels que définis ci-dessus, pour former un composé de formule (4) ; et b) mettre en contact le composé de formule (4) avec un acide pour donner un composé de formule (1), l'étape (a) et/ou l'étape (b) étant réalisées en mode continu.
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Designated States: 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)