The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2008
Filed:
Apr. 15, 2004
Applicant:
Beatriz Dominguez, Suffolk, GB;
Inventor:
Beatriz Dominguez, Suffolk, GB;
Assignee:
Johnson Matthey PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 33/044 (2006.01); C07C 33/046 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for performing, a coupling reaction between acetaldehyde and a terminal alkyne to yield a hydroxyalkyne is described comprising the steps of; (i) reacting without solvent, a terminal alkyne with a Lewis acidic metal salt in the presence of a alkanolamine ligand and a cyclic amine base to form a metal-alkyne complex, and (ii) adding a solution of acetaldehyde to the metal-alkyne complex.