Hydroformylation of unsaturated acetals

Details Hydroformylation of unsaturated acetals Hydroformylation of unsaturated acetals

C - Chemistry, Metallurgy

07

D

260/352.5

C07D 317/26 (2006.01) C07D 319/06 (2006.01)

Patent

CA 1120485

IC 6312 A TITLE Hydroformylation of Unsaturated Acetals ABSTRACT A process for hydroformylating a cyclic acrolein acetal to form the corresponding cyclic acrolein acetal aldehyde, said process comprising con- ducting 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 pressurs 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°C, the rhodium content of said catalyst being 1-50 ppm of rhodium based on the acetal.

321779

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