Patent ID: 7122706
Filing Date: 2006-10-17
Classification: C07C

Abstract:
1. A process for preparing 8(9)-formyltricyclo[5.2.1.0 2,6 ]dec-3-ene by hydroformylating dicyclopentadiene 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 of the Elements at temperatures of from 70 to 150° C. and pressures of from 0.5 to 10 MPa with synthesis gas, which comprises using, as the water-soluble organic phosphorus(III) compounds selected from the group consisting of A) sulfonated triarylphosphines in which Ar 1 , Ar 2 and Ar 3 are individually aryl of 6 to 14 carbon atoms, Y 1 , Y 2 and Y 3 are individually selected from the group consisting of alkyl or alkoxy of 1 to 4 carbon atoms, chlorine, bromine, hydroxyl, cyanide, nitro and —NR 1 R 2 in which R 1 and R 2 are consisting of lithium, sodium, potassium, magnesium, calcium and barium, m 1 , m 2 and m 3 are individually integers from 0 to 5, n 1 , n 2 and n 3 are individually integers from 0 to 3, at least one n 1 , n 2 and n 3 being equal to or greater than 1; B) sulfonated diphosphines of the formula in which n 4 and n 5 are individually 0 or 1, the compound of formula (II) containing up to six —SO 3 M groups, and M is a monovalent metal or the equivalent of a monovalent metal; and C) sulfonated diphosphines of the formula in which n 6 , n 7 , n 8 and n 9 are individually 0 to 1, the compound of formula (III) containing from four to eight —SO 3 M, and M is a monovalent metal or the equivilant of a polyvalent metal.