Reference of 1038-95-5, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.1038-95-5, Name is Tri-p-tolylphosphine, molecular formula is C21H21P. In a patent, introducing its new discovery.
Complexes [Pd{C,N-Ar{C(Me)NOH}-2}(mu-Cl)]2 (1) with Ar = C6H4, C6H3NO2-5 or C 6H(OMe)3-4,5,6, were obtained from the appropriate oxime, Li2[PdCl4] and NaOAc. They reacted with neutral monodentate C-, P- or N-donor ligands (L), with [PPN]Cl ([PPN] = Ph 3PNPPh3), with Tl(acac) (acacH = acetylacetone), or with neutral bidentate ligands NN (tetramethylethylenediamine (tmeda), 4,4?-di-tert-butyl-2,2?-bipyridine (tBubpy)) in the presence of AgOTf or AgClO4 to afford complexes of the types [Pd{C,N-Ar{C(Me)NOH}-2}Cl(L)] (2), [PPN][Pd{C,N-Ar{C(Me)NOH}-2}Cl2] (3), [Pd{C,N-Ar{C(Me)NOH}-2}(acac)] (4) or [Pd{C,N-Ar{C(Me)NOH}-2}(NN)]X (X = OTf, ClO4) (5), respectively. Complexes 1 reacted with bidentate NN ligands in the presence of a base to afford mononuclear zwitterionic oximato complexes [Pd{C,N-Ar{C(Me)NO}-2}(NN)] (6). Dehydrochlorination of complexes 2 by a base yielded dimeric oximato complexes of the type [Pd{mu-C,N,O-Ar{C(Me)NO} -2}L]2 (7). The insertion of XyNC into the Pd-Caryl bond of complex 2 produced the mononuclear iminoaryloxime derivative [Pd{C,N-C(NXy)Ar{C(Me)NOH}-2}Cl(CNXy)] (8) which, in turn, reacted with [AuCl(SMe2)] to give [Pd{mu-N,C,N-C(NXy)Ar{C(Me)NOH}-2}Cl] 2 (9) with loss of XyNC. Some of these complexes are, for any metal, the first containing cyclometalated aryloximato (6, 7) or iminoaryloxime (8, 9) ligands. Various crystal structures of complexes of the types 2, 3, 6, 7, 8 and 9 have been determined.
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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