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:
Mar. 11, 2008
Filed:
Jan. 25, 2007
Applicants:
Helmut Springer, Dinslaken, DE;
Paolo Bavaj, Frankfurt, DE;
Inventors:
Helmut Springer, Dinslaken, DE;
Paolo Bavaj, Frankfurt, DE;
Assignee:
Celanese Chemicals Europe GmbH, Oberhausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/60 (2006.01); C07C 211/36 (2006.01); C07C 211/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
3(4),7(8)-bis(aminomethyl)bicyclo[4.3.0]nonane and a process for its preparation, wherein bicyclo[4.3.0]nona-3,7-diene is reacted with synthesis gas in a homogeneous organic phase in the presence of transition metal compounds of Group VIII of the Periodic Table containing complex-bound organophosphorus compounds, and excess organophosphorus compound, at temperatures of 70 to 160° C. and pressures of 5 to 35 MPa, and the 3(4),7(8)-bisformylbicyclo[4.3.0]nonane thus obtained is reductively aminated.