Study of hydroformylation of formaldehyde in the presence of rhodium catalysts by in situ IR spectroscopy and the kinetic technique
- A.V. Topchiev Inst. of Petrochemical Synthesis, Moscow (Russian Federation); and others
Carbonylrhodium complexes formed during hydroformylation of CH{sub 2}O from various rhodium precursors were investigated by in situ IR spectroscopy. It was found that under the conditions of the hydroformylation of CH{sub 2}O in N,N-dimethylacetamide (DMAA), RhH(CO)(PPh{sub 3}){sub 3}, RhCl(CO)(PPh{sub 3}){sub 2}, RhCl(PPh{sub 3}), RhCl(CO)(PBu{sub 3}){sub 2}, and (RhCl(CO){sub 2}){sub 2} form complex systems that necessarily contain anionic complexes, (Rh(CO){sub 2}L{sub x}(DMAA){sub y}){sup {minus}}(L=PPh{sub 3}, PBu{sub 3},x=1 to 2, y= 1 to 0; (Rh(CO){sub 4}){sup {minus}}). The participation of ionic structures in the hydroformylation of CH{sub 2}O, most likely, in the step of the activation of CH{sub 2}O, was proven by kinetic techniques.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 161904
- Journal Information:
- Russian Chemical Bulletin, Journal Name: Russian Chemical Bulletin Journal Issue: 6 Vol. 44; ISSN RCBUEY; ISSN 1066-5285
- Country of Publication:
- United States
- Language:
- English
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