EP 1529024 A1 20050511 - METHOD FOR THE PRODUCTION OF ACETYLENE ALCOHOLS
Title (en)
METHOD FOR THE PRODUCTION OF ACETYLENE ALCOHOLS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ACETYLENALKOHOLEN
Title (fr)
PROCEDE POUR PRODUIRE DES ALCOOLS D'ACETYLENE
Publication
Application
Priority
- DE 10236578 A 20020808
- EP 0308045 W 20030723
Abstract (en)
[origin: DE10236578A1] A method for the production of acetylene alcohols by mono-ethynylation of ketones comprising: (a) reaction of lithium with a 1-10C alkyl halide; (b) introduction of acetylene gas; and (c) addition of the ketone. A method for the production of acetylene alcohols of formula (I) by mono-ethynylation of ketones of formula R1-CO-R2 comprising: (a) reaction of lithium with a 1-10C alkyl halide, (b) introduction of acetylene gas and (c) addition of the ketone. HCequivalent toC-CR1R2-OH (I) R1, R2 = H or optionally unsaturated 1-30C alkyl, aryl, cycloalkylalkyl or cycloalkyl (all optionally substituted), or groups of formula -CH2CH2CHR3R4 or -CH2CH=CR3R4; and R3, R4 = H or optionally unsaturated, optionally substituted 1-30C alkyl, aryl, cycloalkylalkyl or cycloalkyl.
IPC 1-7
IPC 8 full level
C07B 61/00 (2006.01); C07C 29/42 (2006.01); C07C 33/042 (2006.01); C07C 33/048 (2006.01); C07C 33/14 (2006.01); C07C 33/48 (2006.01); C07C 403/00 (2006.01)
CPC (source: EP US)
C07C 29/42 (2013.01 - EP US); C07C 403/08 (2013.01 - EP US); C07C 2601/16 (2017.04 - EP US)
Citation (search report)
See references of WO 2004018399A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 10236578 A1 20040219; AU 2003254574 A1 20040311; CN 1675151 A 20050928; EP 1529024 A1 20050511; JP 2005534717 A 20051117; US 2005272963 A1 20051208; WO 2004018399 A1 20040304
DOCDB simple family (application)
DE 10236578 A 20020808; AU 2003254574 A 20030723; CN 03818831 A 20030723; EP 0308045 W 20030723; EP 03792224 A 20030723; JP 2004530049 A 20030723; US 52392505 A 20050207