Patent ID: 8507731
Filing Date: 2013-08-13
Classification: B01J,C07C,C07F

Abstract:
1. A hydroformylation process for producing two or more aldehydes comprising a normal aldehyde and one or more iso-aldehydes with a target N/I ratio, which N/I ratio is defined as a molar ratio of the normal aldehyde to the iso-aldehydes, the process comprising contacting under reaction conditions an α-olefin represented by formula (I): wherein R is selected from the group consisting of hydrogen, substituted and unsubstituted C 1-9 -alkyl moieties, with carbon monoxide and hydrogen in a reaction medium that is essentially free of an iso-olefin represented by formula (II): wherein R is as defined above, in the presence of a transition metal-ligand complex catalyst comprising a symmetric calixarene bisphosphite ligand represented by formula (III): wherein each R 1 is the same and is selected from the group consisting of hydrogen and substituted or unsubstituted alkyl moieties; wherein each R 2 is the same and is an amide moiety; and wherein each R