1 / 13

Hydroformylation

Hydroformylation. Otto Roelen (1897-1993). * Largest homogeneous catalytic process * > 15 billion pounds of aldehydes (alcohols) per year Commercial catalysts are complexes of Co or Rh Selectivity to linear (normal) aldehyde important.

veda-everett
Télécharger la présentation

Hydroformylation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Hydroformylation Otto Roelen (1897-1993) *Largest homogeneous catalytic process * > 15 billion pounds of aldehydes (alcohols) per year • Commercial catalysts are complexes of Co or Rh • Selectivity to linear (normal) aldehyde important

  2. HCo(CO)4Catalyst System – Unmodified Co

  3. HCo(CO)4(PR3) Catalyst System – Phosphine Modified Lynn Slaugh and Richard Mullineaux; Shell Chemical Co.

  4. Table 1. Hydroformylation of 1-hexene using Co2(CO)8/2P as catalyst precursor. 160°C, 70 atm, 1.2:1 H2/CO

  5. HRh(CO)(PR3)2 Catalyst System

  6. Need for Excess PhosphineLigand

  7. [rac-Rh2H2(m-CO)2(et,ph-P4)]2+ Catalyst System

  8. [rac-Rh2H2(m-CO)2(et,ph-P4)]2+ Catalyst Fragmentation strong acid in H2O, MeOH similar to HCl !! HCo(CO)4 H+ + [Co(CO)4]-

More Related