EP 1060294 A1 20001220 - METHOD FOR CARBOXYLATING TERMINAL ALKYNES
Title (en)
METHOD FOR CARBOXYLATING TERMINAL ALKYNES
Title (de)
VERFAHREN ZUR CARBOXYLIERUNG VON TERMINALEN ALKINEN
Title (fr)
PROCEDE DE CARBOXYLATION D'ALKINES TERMINALES
Publication
Application
Priority
- DE 19809532 A 19980305
- EP 9901366 W 19990303
Abstract (en)
[origin: US6342149B1] A method for carboxylating terminal alkynes that have at least one additional aliphatic carbon atom in an alpha position and that do not have a proton which has a higher acidity than that of the proton of the terminal triple bond. In an undivided electrolysis cell equipped with a cathode and an anode, a solution of the terminal alkyne in an aprotic solvent is acted upon by carbon dioxide at a pressure higher than atmospheric pressure. The invention provides a method in which carbon dioxide is selectively inserted between the terminal C-H bond, without disturbing the triple bond, and can be carried out without a catalyst or catalyst precursor.
IPC 1-7
IPC 8 full level
C07B 41/08 (2006.01); C07C 69/606 (2006.01); C07C 69/608 (2006.01); C07C 69/734 (2006.01); C25B 3/25 (2021.01)
CPC (source: EP US)
C25B 3/25 (2021.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB LI NL
DOCDB simple family (publication)
US 6342149 B1 20020129; AT E230040 T1 20030115; DE 19809532 C1 19990415; DE 59903829 D1 20030130; EP 1060294 A1 20001220; EP 1060294 B1 20021218; JP 2002506119 A 20020226; JP 3325883 B2 20020917; WO 9945173 A1 19990910
DOCDB simple family (application)
US 62341800 A 20000905; AT 99914466 T 19990303; DE 19809532 A 19980305; DE 59903829 T 19990303; EP 9901366 W 19990303; EP 99914466 A 19990303; JP 2000534700 A 19990303