Journal of Organometallic Chemistry p. 343 - 350 (1983)
Update date:2022-08-11
Topics:
Leeuwen, P. W. N. M. van
Roobeek, C. F.
The otherwise unreactive olefins (2-methyl-1-hexene, limonene, cyclohexene, methylene cyclohexane) are hydroformylated under mild conditions (90 deg C, 10 bar) in the presence of phosphite-modified rhodium catalysts.The high rates observed are attributed to the steric and electronic properties of these phosphite ligands and their ability to stabilize unsaturated rhodium species.Examples of these ligands are tris(o-t-butylphenyl) phosphite and tris(hexafluoroisopropyl) phosphite, which are, respectively, sterically demanding and strongly electron-withdrawing.
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