| 摘要 |
1,144,431. Hydroformylation. AJINOMOTO CO Inc. 15 Feb., 1966 [15 Feb., 1965], No. 6506/66. Heading C2C. Compounds of the formula X-CH 2 HR 2 -Y, wherein X is hydrogen or the group -COOR (where R is a C 1-4 alkyl group) and Y is -CHO or -CH(OR) 2 when X is hydrogen, or Y is hydrogen, -CHO or -CH(OR) 2 when X is -COOR are obtained by hydroformylation. using carbon monoxide and hydrogen, of a cracked gas obtained by thermal cracking of a hydrocarbon material and containing acetylene and ethylene as its main unsaturated hydrocarbon components, in the presence of a C 1-4 alcohol and cobalt carbonyl or a cobalt-containing substance which will yield cobalt carbonyl under the reaction conditions. The cracked gas contains hydrogen and carbon monoxide, but it may be necessary to add either or both gases to the reaction mixture to attain optimum operating conditions. It is preferred to effect hydroformylation at 120-160‹ C. under pressures of 50-1000 kg./cm.<SP>2</SP>. The product contains a mixture of propionaldehyde and the acetals thereof,α- or #-formyl propionate and the acetals thereof and C 1-4 alkyl propionates. Reference has been directed by the Comptroller to Specification 1,080,903. |
