Research Article

Highly active cationic cobalt(II) hydroformylation catalysts

See allHide authors and affiliations

Science  31 Jan 2020:
Vol. 367, Issue 6477, pp. 542-548
DOI: 10.1126/science.aaw7742

You are currently viewing the editor's summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution

Charging up cobalt for hydroformylation

Hydroformylation reactions are applied at massive scale in the chemical industry to transform olefins into aldehydes. The original catalysts were neutral cobalt complexes. Hood et al. now report that positively charged cobalt complexes, stabilized by chelating phosphine ligands, show higher activities at lower pressures than their neutral counterparts, approaching the activities of precious rhodium catalysts. These charged catalysts are particularly adept at accelerating the reactions of internal olefins while avoiding decomposition. Spectroscopic studies implicate the involvement of 19-electron intermediates in the catalytic cycle.

Science, this issue p. 542

View Full Text

Stay Connected to Science