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1. (WO2017133942) CATALYTIC HYDROGENATION PROCESS FOR PREPARING PYRAZOLES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/133942 International Application No.: PCT/EP2017/051524
Publication Date: 10.08.2017 International Filing Date: 25.01.2017
Chapter 2 Demand Filed: 30.11.2017
IPC:
C07D 231/14 (2006.01) ,C07C 251/72 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
231
Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
02
not condensed with other rings
10
having two or three double bonds between ring members or between ring members and non-ring members
14
with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
251
Compounds containing nitrogen atoms doubly- bound to a carbon skeleton
72
Hydrazones
Applicants:
BASF SE [DE/DE]; Carl-Bosch-Str. 38 67056 Ludwigshafen am Rhein, DE
Inventors:
KLAUBER, Eric George; US
RACK, Michael; DE
SOERGEL, Sebastian; DE
GOCKEL, Birgit; DE
GOETZ, Roland; DE
Agent:
BASF IP ASSOCIATION; BASF SE ZRX - C006 67056 Ludwigshafen, DE
Priority Data:
16153833.502.02.2016EP
Title (EN) CATALYTIC HYDROGENATION PROCESS FOR PREPARING PYRAZOLES
(FR) PROCÉDÉ D'HYDROGÉNATION CATALYTIQUE POUR LA PRÉPARATION DE PYRAZOLES
Abstract:
(EN) The present invention relates to a catalytic process for preparing pyrazoles comprising the step of cyclizing hydrazone substituted α,β-unsaturated carbonyl compounds by reacting them with hydrogen in a reaction mixture comprising as components (a) a hydrogenation catalyst, (b) an acid selected from Brønsted acids, ammonium salts of Brønsted acids, and Lewis acids, (c) a protic solvent, and optionally (d) an aprotic solvent.
(FR) La présente invention concerne un procédé catalytique permettant de préparer des pyrazoles, ledit procédé comprenant l'étape consistant à cycliser des composés carbonyle α,β-insaturés à substitution hydrazone en les faisant réagir avec de l'hydrogène dans un mélange réactionnel comprenant, comme composants, (a) un catalyseur d'hydrogénation, (b) un acide choisi parmi les acides de Brønsted, les sels d'ammonium d'acides de Brønsted et les acides de Lewis, (c) un solvant protique et éventuellement (d) un solvant aprotique.
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, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
UAa201808830AU2017216082CA3010561KR1020180104743ID2018/10803CN108699003
EP3411360IL260375BR112018014357IN201827029598US20190055200