Resolutions with metal complexes. Preparation and resolution of (R,S)-methylphenyl(8-quinolyl)phosphine and its arsenic analog. Crystal and molecular structure of (+)589-[(R)-dimethyl(1-ethyl-.alpha.-naphthyl)aminato-C2,N][(S)-methylphenyl(8-quinolyl)phosphine]palladium(II) hexafluorophosphate

Assignment of absolute configuration using chiral reagents and NMR spectroscopy

“…The analogous arsines of 124 and 125 can also be analyzed using the palladium dimers. 235,236 The same palladium dimers (96) can be used to assign the absolute configuration of diphosphines. Either the methine hydrogen on the original phenyl or naphthyl ligand or connectivities determined through NOESY or ROESY data are used in making the assignment.…”

Differences in the η1-ligating properties of 2,4,6-tritertiarybutyl-phosphabenzene, and 2,4,6-tritertiarybutyl-1,3,5-triphosphabenzene,

“…The attempted reaction of 1 with di-l-chloro-bis[(R)-dimethyl(1-ethyl-a-naphthyl)-aminato-C 2 ,N] palladium(II), 3 [19] ( Fig. 1), or [AuCl(tht)] only resulted in the recovery of unreacted starting materials, as shown by 31 P NMR spectroscopic monitoring, the only observed resonance being that characteristic of 1 (d P = 232 ppm).…”

Asymmetric synthesis of a chiral hetero-bidentate As–P ligand containing both As and P-stereogenic centres

“…Phenyldivinylphosphine [11], DMPA [12] and (+)-1 [13] were prepared according to the literature procedures.…”

“…Pd(1)-Cl (1) 2.366(1) Pd(1)-Cl (2) 2.360(1) Pd(1)-As (1) 2.320(1) Pd(1)-P(1) 2.246(1) As(1)-C (12) 1.971 (4) As(1)-C (7) 1.974(4) P(1)-C(15) 1.801(5) P(1)-C(14) 1.853(5) C(7)-C (8) 1.521(6) C(7)-C(14) 1.556(6) C(8)-C(10) 1.336 (6) C(10)-C (12) 1.514(6) C(12)-C (13) 1.548 (7) C (13) (1) 174.8(1) Cl(2)-Pd(1)-Cl(1) 95. 8(1) C(12)-As(1)-C (7) 77.4(2) C(14)-C(7)-As(1) 94.9(2) C(8)-C(7)- C(14) 111.9(3) C(8)-C(7)-As(1) 100.…”