744954-62-9Relevant academic research and scientific papers
Stereoselective Aromatic Ring Hydrogenation over Supported Rhodium Catalysts in Supercritical Carbon Dioxide Solvent
Shirai,Hiyoshi,Rode
, p. 1926 - 1934 (2019/01/05)
The combination of supported rhodium metal catalysts and supercritical carbon dioxide solvent was effective for the stereoselective ring hydrogenations of aromatic compounds at low temperature. Higher solubility of hydrogen in supercritical carbon dioxide provides higher concentration of hydrogen on the rhodium surface, but lower that of the intermediate on rhodium surface, which suppresses the flipping of surface intermediate, leading to higher catalyst activities and cis selectivities to the corresponding ring-hydrogenated products as compared with those in organic solvents.
Reinvestigation on the optical purities of optically active trimethylsilyl enol ethers of 4-substituted cyclohexanones
Aoki,Nakajima,Tomioka,Koga
, p. 994 - 996 (2007/10/02)
Maximum rotations of (R)-4-tert-butyl-, (R)-4-phenyl-(R)-4-isopropyl-, and (R)-4-methyl-1-trimethylsilyloxycyclohexenes ((R)-3a, (R)-3b, (R)-3c, and (R)-3d) were determined to be [α]36525 + 237° (benzene), [α]36525 + 146° (benzene), [α]36525 + 228° (benzene), and [α]36525 + 238° (benzene), respectively.
