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:
Aug. 04, 2009
Filed:
Mar. 14, 2008
Yasunori Ino, Kanagawa, JP;
Akifumi Yoshida, Kanagawa, JP;
Wataru Kuriyama, Kanagawa, JP;
Takasago International, Tokyo, JP;
Abstract
A method for producing alcohols which comprises reducing esters or lactones with hydrogen gas in the presence of a catalyst comprising (i) a ruthenium compound, (ii) a monodentate monophosphine or a bidentate bisphosphine, and (iii) an amine. Examples of the catalyst include a ruthenium (Ru) complex represented by the formula:RuXX(L)(L)[Xand Xeach represent an anionic ligand, Lrepresents a phosphine ligand, m is 1 when Lis bidentate, while m is 2 when Lis monodentate, Lrepresents an amine ligand, and n is 1 when Lis bidentate, while n is 2 when Lis monodentate.] and a catalyst comprising an amine and a ruthenium (Ru) complex of the formula: RuXX(L)[Lrepresents a monophosphine ligand and r is 3 or 4.].