| 摘要 |
A process for hydroformylating a cyclic acrolein acetal to form the corresponding cyclic acrolein acetal aldehyde, said process comprising conducting said hydroformylation in the presence of carbon monoxide, hydrogen, rhodium complex catalyst and 1-3% of excess triphenyl phosphite ligand based on the acetal at a pressure of carbon monoxide of from 5-20 psia and a pressure of hydrogen of from 10-400 psia maintained with a gas having a H2:CO ratio of from 1:1-20:1 and a temperature of from 100-115 DEG C, the rhodium content of said catalyst being 1-50 ppm of rhodium based on the acetal.
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