7650-91-1,7650-91-1, Benzyldiphenylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
Weigh benzyl diphenylphosphine (138.2 g, 0.5 mol), dimethyl carbonate (135.1 g, 1.5 mol),Benzene (68.3 g, 25%) and 80%-Cs2O/SiO2 catalyst (1.37 g, 0.5%) were added to a stainless steel autoclave,The air in the reaction vessel was replaced by N2, and the temperature was raised to 160 C for 8 hours.After completion of the reaction, the cooling water was cooled to 65 C, and the catalyst was recovered by filtration, and the unreacted raw materials and solvent were distilled off under reduced pressure.The product was washed with n-hexane and then dried under vacuum at 60 C for 5 hours to give benzyldiphenylmethylmethyl carbonate (164.9 g) in a yield of about 90%.The methyl carbonate quaternary phosphonium salt benzyl diphenyl methyl carbonate hydrazine (55.0 g, 0.15 mol) was weighed and dissolved in dichloromethane (137.5 g).Trifluoromethanesulfonic acid (22.5 g, 0.15 mol) was added, and the mixture was refluxed under magnetic stirring at 50 C for 3 hours.After completion of the reaction, the solvent was removed by distillation under reduced pressure to give 62.8 g of benzyldiphenylmethyltrifluoromethanesulfonate ionic liquid, yield of about 95%.
7650-91-1 Benzyldiphenylphosphine 603920, achiral-phosphine-ligands compound, is more and more widely used in various fields.
Reference£º
Patent; China Daily Expenses Chemical Institute Co., Ltd.; Geng Tao; Duan Shengfu; Jiang Yajie; Ju Hongbin; Wang Yakui; (8 pag.)CN108440595; (2018); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate