4,4′ and 5,5′-DiamBINAP as a hydrosoluble chiral ligand: syntheses and use in Ru(II) asymmetric biphasic catalytic hydrogenation

Extensive Re‐Investigations of Pressure Effects in Rhodium‐ Catalyzed Asymmetric Hydrogenations

“…The synthesis of the BINAP derivatives are published elsewhere. [14] In preliminary studies, 18 of the commercially available ligands [i.e., (R,R)-DIPAMP, 1, 15, 30, 31, 33, 34, 38, 40, 41, 42, 45, 47, 48, 49, 51, 52, 55] were investigated over the largest range of hydrogen pressure available with our experimental set-up (1-40 bar) and for the hydrogenation of only one substrate, methyl Z-a-acetamidocinnamate (MAC). Selected results are sketched in Table 2.…”

“…[1,20] Synthesis of the new BINAP derivatives are published elsewhere. [14] Mathematical Derivation of the Sign of Derivative of ee with Hydrogen Concentration Two parallel reactions are competing for the formation of enatiomers R and S and the reaction scheme writes as:…”

Asymmetric Hydrogenation of β-Keto Esters Catalyzed by Ruthenium Species Supported on Porous Organic Polymer

“…Ru/POP-BINAP can be reused four cycles without significant loss of the catalytic activities and enantioselectivitiy. [58] and tetra(4-azidophenyl)methane [59] were prepared according to the literature methods. All solvents were dried by the standard methods before use.…”

Circularly polarized luminescence from chiral Eu(III) Complex with high emission quantum yield

“…(R)-BINAPO and BIPHEPO were prepared by oxidation of (R)-BINAP and BIPHEP, according to the literature procedure [8]. [Eu(BIPHEPO)(hfa)3] was prepared according to the previous procedure [7b].…”