Homogeneous and Heterogeneous Pd-Catalyzed Selective C–P Activation and Transfer Hydrogenation for “Group-Substitution” Synthesis of Trivalent Phosphines
作者:Ming Lei、Xingyu Chen、Yingjie Wang、Liran Zhang、Hong Zhu、Zhiqian Wang
DOI:10.1021/acs.orglett.2c00844
日期:2022.4.22
reported. The alkyl groups were introduced by alkylation of phosphines to form phosphonium salts. The “de-arylation” of phosphonium salts was achieved by C–P activation and transfer hydrogenation with homogeneous or heterogeneous Pd (0) catalysts. With this method, a series of trivalent phosphines were prepared from commercially available triarylphosphines. A chiral monophosphine ligand could be prepared
报道了通过鏻盐的 C-P 活化合成三价膦的“基团取代”。通过膦的烷基化引入烷基以形成鏻盐。鏻盐的“去芳基化”是通过 C-P 活化和使用均相或非均相 Pd (0) 催化剂的转移氢化来实现的。采用这种方法,从市售的三芳基膦中制备了一系列三价膦。手性单膦配体可以从 BINAP 在“脱膦”过程中制备。