Alkali-metal-catalyzed addition of primary and secondary phosphines to carbodiimides. A general and efficient route to substituted phosphaguanidines
作者:Wen-Xiong Zhang、Masayoshi Nishiura、Zhaomin Hou
DOI:10.1039/b609198a
日期:——
Organo alkali metal compounds such as nBuLi and (Me3Si)2NK act as excellent catalyst precursors for the addition of phosphine P–H bonds to carbodiimides, offering a general and atom-economical route to substituted phosphaguanidines, with excellent tolerability to aromatic C–Br and C–Cl bonds.
Molybdenum- and tungsten-cyclopentadienyl carbonyl complexes with hetero-allyl derivatives as ligand
作者:H.P.M.M. Ambrosius、A.H.I.M. Van Der Linden、J.J. Steggerda
DOI:10.1016/s0022-328x(00)84587-8
日期:1981.1
p-tol) behave as neutral monodentate (LH) ligands in substitution reactions with M(CO)3(η5-C5H5)Cl (M = Mo, W), forming M(CO)2(η5-C5H5)Cl(LH) with P bonded to the metal atom. Deprotonation under the influence of the base Et3N occurs only in the case of X = S and the chelate complexes M(CO)2(η5-C5H5)(L−) are formed with coordination via P and S. The related ligand Me2NC(S)N(H)R (R = Me, Ph) reacts in the
Catalytic insertion of E–H bonds (E = C, N, P, S) into heterocumulenes by amido–actinide complexes
作者:Rami J. Batrice、Moris S. Eisen
DOI:10.1039/c5sc02746b
日期:——
We report herein the actinide-mediated insertion of E–H bonds (E = C, N, P, S) into various heterocumulenes including carbodiimides, isocyanates, and isothiocyanates.
The chemistry of hetero-allene and -allylic derivatives with rhodium and iridium II. Rhodium(I)- and iridium(i)-phosphine complexes of hetero-allylic ligands of the type [Ph2PC(x)NR]− (X = S, NR, O) and [Ph2P(W)C(S)NR]− (Q = S, O). Synthesis and 31P-NMR
作者:D.H.M.W Thewissen、H.P.M.M. Ambrosius、H.L.M. Van Gaal、J.J. Steggerda
DOI:10.1016/s0022-328x(00)93336-9
日期:1980.6
[Ph2PC(X)NR]− (X = S, NR, O) and [Ph2P(Q)C(S)NR]− (Q = S, O) have been shown to react with rhodium(I)- and iridium(I)-phosphine compounds to give stable complexes M(PPh3)2[Ph2PC(X)NR] (A) and M(PPh3)2[Ph2P(Q)C(X)NR] (B) (M = Rh, Ir) in which the ligands are bidentate. P, S(P) and O(P) are always coordinated and the coordination preference of the other atoms is: S > NR > O.
Reactions of low-valent metal complexes with fluorocarbons. Part XV. Acetylacetonatobis(methyldiphenyl- or triphenyl-phosphine)rhodium
作者:A. J. Mukhedkar、V. A. Mukhedkar、M. Green、F. G. A. Stone
DOI:10.1039/j19700003166
日期:——
form the rhodium(III) complexes [Rh(acac)(Ph2PMe)2(C3F7)I] and [Rh(acac)(Ph2PMe)2(COC6F5)Cl]. Treatment of [Rh(L)2(acac)] with pentafluorobenzene sulphonyl chloride affords the five-co-ordinate complexes [Rh(acac)(L)(SO2C6F5)Cl](L = Ph2PMe or Ph3P). Tetrafluoroethylene and chlorotrifluoroethylene react with [Rh(Ph2PMe)2(acac)] to give respectively the rhodacyclopentane complexes [Rh(CF2)4(acac)(Ph2PMe)2]
七氟碘正丙烷和五氟苯甲酰氯氧化添加到乙酰丙酮双(甲基二苯基膦)铑中形成铑(III)络合物[Rh(acac)(Ph 2 PMe)2(C 3 F 7)I]和[Rh(acac)( Ph 2 PMe)2(COC 6 F 5)Cl]。用五氟苯磺酰氯处理[Rh(L)2(acac)]得到五配位络合物[Rh(acac)(L)(SO 2 C 6 F 5)Cl](L = Ph 2 PMe或Ph 3 P)。四氟乙烯和三氟氯乙烯与[Rh(Ph2 PMe) 2(acac)]分别得到[rh(CF 2) 4(acac)(Ph 2 PMe) 2 ]和[Rh(acac)(Ph 2 PMe) 2(C 2 F 3 Cl) 2 ]。溴三氟乙烯反而产生[Rh(acac)(Ph 2 PMe) 2(C 2 F 3 Br)]。相反,[Rh(Ph 2 PMe) 2(acac)]与1,2-二氯四氟环丁烯反应形成乙烯基络合物[Rh(acac)(Ph