5-Amino-2-(4-Aminophenyl)Benzimidazole 98.0%(HPLC)

(R)-BINAP reacts with allylpalladium(II) chloride dimer to form a BINAP-palladium catalyst which can catalyze the asymmetric allylation of 13-diketones to form chiral 22-dialkyl-13-diketones.It may also be used in the preparation of chirally stabilized rhodium nanoparticles which can be used as a catalyst for the asymmetric hydroformylation of styrene and vinyl acetate.

For R&D use onlynot for drug household or other uses.

BINAP (22-bis(diphenylphosphino)-11-binaphthyl) is an organophosphorus compound. This chiral ligand is widely used in asymmetric synthesis. It consists of a pair of 2-diphenylphosphinonaphthyl groups linked at the 1 and 1 positions. This C2-symmetric framework lacks a stereogenic atom but has axial chirality due to restricted rotation (atropisomerism). The barrier to racemization is high due to steric hindrance which limits rotation about the bond linking the naphthyl rings. The dihedral angle is approximately 90.