A. Dabbawala, R. Jasra, H. Bajaj
Feb 10, 2011
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Influential Citations
27
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Journal
Catalysis Communications
Abstract
Abstract The selective hydroformylation of 1-hexene to branched aldehydes was investigated using rhodium complex of tri-1-naphthylphosphine PNp 3 and tri-1-naphthylphosphite P(ONp) 3 . The PNp 3 and P(ONp) 3 ligands having more steric nature than PPh 3 enhanced the formation of branched aldehydes at 110 °C and 4.0 MPa syngas pressure. The branched aldehyde selectivity increased remarkably (82%) by adding P(ONp) 3 as auxiliary ligand in Rh/PNp 3 catalyzed hydroformylation of 1-hexene. The high selectivity for the branched aldehydes is due to rapid alkene isomerization producing internal alkenes followed by hydroformylation to yield branched aldehydes.