In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Evaluation of pressure and correlation to reaction rates during homogeneously catalyzed hydroformylation in supercritical carbon dioxide, published in 2008-08-31, which mentions a compound: 175136-62-6, mainly applied to hydroformylation octene supercritical carbon dioxide, Quality Control of Tris(3,5-bis(trifluoromethyl)phenyl)phosphine.
For the hydroformylation of 1-octene in supercritical carbon dioxide the relation between the change in pressure and the change in reaction mixture composition as a function of time was studied. The activity and selectivity was studied for the catalyst based on tris(3,5-bis(trifluoromethyl)phenyl)phosphine and rhodium(I) dicarbonyl acetylacetonate. The influence of the ligand to rhodium ratio on the hydroformylation was used to demonstrate how the pressure can be correlated to the conversion and yield. The initial rate of reaction is in good agreement with the initial pressure change in the batch reactor. Up to an aldehyde yield of 80%, the pressure drop appears to be independent of the reaction rate and selectivity. The highest average reaction rate, 7170 mol1-octeneoctene molRH-1 h-1, was obtained for a ligand to rhodium ratio of 50 and an initial concentration of 1-octene of 0.5 mol L-1. Both the reaction rate and the selectivity increase when the ligand to rhodium ratio is increased. The Peng-Robinson equation of state was used to describe the pressure as a function of the concentration of the reactants and products. The calculated pressure corresponds reasonably well with the observed reactor pressure. Following the progress of the reaction by monitoring the pressure is a good alternative to reaction mixture sampling, especially for fast reactions.
《Evaluation of pressure and correlation to reaction rates during homogeneously catalyzed hydroformylation in supercritical carbon dioxide》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Tris(3,5-bis(trifluoromethyl)phenyl)phosphine)Quality Control of Tris(3,5-bis(trifluoromethyl)phenyl)phosphine.
Reference:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem