Application of 538-58-9, New Advances in Chemical Research in 2021. The spectroscopic and theoretical assessments of solvent structures and their interactions with reaction intermediates and transition states. 538-58-9, Name is 1,5-Diphenylpenta-1,4-dien-3-one, molecular formula is C17H14O, belongs to chiral-oxygen-ligands compounds. In a Article，once mentioned of 538-58-9
The steroidal 1,4-diphosphines 3alpha- and 3beta-diphenylphosphino-2alpha-(2′-diphenylphosphinoethyl)-5alpha-cholestanes and their 5H-benzophosphindole derivatives have been prepared and shown to be useful ligands in asymmetric hydrogenation reactions.Interestingly the 3alpha- and 3beta-derivatives lead to opposing enantioselection preferences when used in these reactions.A steroidal 1,3-diphospine, 3alpha-diphenylphosphino-2alpha-diphenylphosphinomethyl-5alpha-cholestane, has been prepared as a mixture containing some of the 3beta-epimer.The 3alpha-1,3-diphosphine led to similar enantioselection in hydrogenation reactions as the 3alpha-1,4-diphosphine, and a model is proposed to explain the sense of the enantioselectivity in the 1,4- and 1,3-diphosphines.A steroidal 1,6-diphosphine has also been prepared but leads to lower optical yields in the hydrogenation reactions.These ligands have been shown to lead to only poor to moderate optical yields when used in asymmetric carbon-carbon bond forming reactions.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 538-58-9
Reference：
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate