Patent ID: 7342135
Filing Date: 2008-03-11
Classification: C07C

Abstract:
1. A process for preparing 3(4),7(8)-bis(aminomethyl)bicyclo[4.3.0]nonane by hydroformylating bicyclo[4.3.0]nona-3,7-diene with subsequent reductive amination, comprising reacting bicyclo[4.3.0]nona-3,7-diene 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 then reductively aminating the 3(4),7(8)-bisformylbicyclo[4.3.0]nonane thus obtained to form 3(4),7(8)bis(aminomethyl)bicyclo[4.3.0]nonane.