| 摘要 |
Process for converting an olefin having x carbon atoms into an olefin hav ing x+1 carbon atoms wherein the process comprises the steps of : (i) reacti ng an olefin having x carbon atoms with carbon monoxide and hydrogen in the presence of a hydrof ormylation catalyst to produce an alcohol having x+1 ca rbon atoms, and (ii) dehydrating the alcohol produced in step (i) in the pre sence of a dehydration catalyst to produce an olefin having x+1 carbon atoms characterised in that the the hydrof ormylation catalyst used in step (i) i s based on: (a) a source of cobalt, and (b) a ligand selected from: (i) a li gand of general formula (I) : R1R2P-R3 (I) wherein R1 and R2 are independent ly a hydrocarbyl group with C1-C12 carbon atoms or together with the phospho rus atom P represent an optionally substituted cyclic group with at least 5 ring atoms; and wherein R3 is a monovalent radical of general formula: -R4-C (O) NR5R6 (II) wherein R4 is an alkylene group and R5 and R6 independently represent an alkyl, cycloalkyl, aryl, alkaryl or heteroaryl group; (ii) a li gand of general formula (III) : R1R2P-R4-C(O)N(R7) -R8-N(R7) C(O) -R4PR1R2 ( III) wherein R1, R2 and R4 are as defined above, wherein R7 independently re presents an alkyl, cycloalkyl, aryl, alkaryl or heteroaryl group, and wherei n R8 represents an alkylene, cycloalkylene, arylene or alkarylene group; and (iii) a ligand of general formula (IV) : R1R2P-R4-C (O) N- (R8)2-NC (O) -R4 -PR1R2 (IV) wherein R1, R2, R4 and R8 are as defined above; and mixtures the reof. |
