Reactions of isocyanates with primary and secondary phosphines without solvent at room temperature afforded the corresponding phosphinecarboxamide (RN(H)COPR'2) in excellent yields. This reaction system is applicable for isothiocyanates. The compounds newly obtained were fully characterized using multielement NMR spectroscopy. In addition, the molecular structure of Cl(CH2)2N(H)COPPh2 was studied by
A Copper(I) Platform for One-Pot P–H Bond Formation and Hydrophosphination of Heterocumulenes
作者:Thomas M. Horsley Downie、Mary F. Mahon、John P. Lowe、Rowan M. Bailey、David J. Liptrot
DOI:10.1021/acscatal.2c02199
日期:2022.7.15
bonded species, including secondary and primary phosphines as well as PH3, in excellent conversions. These phosphines can be subsequently applied in the copper(I)-catalyzed hydrophosphination of heterocumulenes in a telescoped, one-pot fashion. This approach yielded 12 phosphaureas, 3 phosphaguanidines, and 2 phosphathioureas in moderate to excellent yields without the need to handle toxic, pyrophoric
isocyanates/isothiocyanates with primary and secondary phosphines without solvent at room temperature afforded phosphinecarboxamide/phosphinecarbothioamide, respectively, in excellent yields. Furthermore, palladiumcomplex Pd(COD)Cl2 was allowed to react with Ph2PC(O)NHPh (1a) to afford [PdPh2PC(O)NHPh-κP}2Cl2] (3). On the other hand, the reaction of Pd(COD)Cl2 with 1 eq. of Ph2PC(S)NHPh (2a) afforded [PdCl2Ph2PC(S)NHPh-κP