Process for preparing TCD-diamine

摘要

A process for preparing 3 ( 4 ), 8 ( 9 )-bis(aminomethyl)tricycle-[ 5.2.1.0 ^2,6]decane by hydroformylating dicyclopentadiene with subsequent reductive amination wherein the hydroformylation of dicyclopentadiene is carried out in two stages, and, in a first hydroformylation stage, the reaction is effected in a heterogeneous reaction system using an aqueous solution of transition metal compounds, containing water-soluble organic phosphorus (III) compounds in complex-bound form, of group VIII of the Periodic Table to give 8 ( 9 )-formyltricyclo[ 5.2.1.0 ^2,6]dec- 3 -ene, and, in a second hydroformylation stage, the thus obtained 8 ( 9 )-formyltricyclo[ 5.2.1.0 ^2,6]dec- 3 -ene is converted, in a homogeneous organic phase in the presence of transition metal compounds of group VIII of the Periodic Table of the Elements to 3 ( 4 ), 8 ( 9 )-bisformyltricyclo[ 5.2.1.0 ^2,6]decane