Electric Literature of 84127-04-8. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 84127-04-8, Name is Bis(4-methoxyphenyl)phosphine
Optisch aktive Uebergangsmetall-Komplexe. CV. Faciale und meridionale Chromcarbonylphosphin-Komplexe
The optically active, facial complex Cr(CO)3(PP’P”) (1) with the tridentate ligand PP’P”=(R)-(+)-1,2,4-tris(diphenylphosphino)butane has been synthesized and characterized.The complex Cr(CO)3(PP’)P” (PP’=(R)-(+)-prophos, P”=PMe2Ph) forms two pairs of diastereomers, facial (3, 4) and meridional (5, 6), respectively, that can be separated by preparative column chromatography.Surprisingly, the CD spectra of Cr(CO)3(PP’P”) (1) and the facial distereomer of Cr(CO)3(PP’)P” (3), which have the same configuration at the Cr atom, are dissimilar.The meridional configuration of the two isomers 5 and 6 of Cr(CO)3(PP’)PMe2Ph is supported by the 31P and 1H NMR spectra of the optically inactive complex Cr(CO)3(PP’)P” (PP’=1-
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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