Numerous new complexes of the type V(CO)5n(NO)Ln, have been prepared either by nitrosylation of [V(CO)6nLn]−(n 2, 3) with NOX (X Cl, BF4) and [Co(NO)2Br]2, resp., or by reaction of L with “V(CO)5NO” generated in situ. The compounds comprise n 1: L PPh3, PMe2H, P(OMe)3 and Ph2PCH2−PPh2 (dppm); n 2: L22 2 PMe2H, 2 PMe3, 2 P(OMe)3, dppm, Ph2P(CH2)2−PPh2, Ph2P(CH2)3,PPh2, Me2P(CH2)2PMe2,
Metallkomplexe mit verbrückenden dimethylphosphidoliganden
作者:H. Werner、R. Zolk、W. Hofmann
DOI:10.1016/0022-328x(86)80063-8
日期:1986.3
[(C5H5Co)2(μ-PMe2)2(μ-H)]PF6 (IIa) reacts with PMe3 PMe2H or P(OMe)3 in methanol by opening the hydride bridge and formation of [C5H5(L)Co(μ-PMe2)2Co(H)C5H5]PF6 (L = PMe3 (III); L = PMe2H (IV); L = P(OMe)3 (V)). A solution of the dimethylphosphine complex IV in nitromethane gives a mixture of products from which the compounds trans-[C5H5(PMe2H)Co(μ-PMe2)]2}(PF6)2 (VII) and [(C5H5Co)2(μ-PMe2)3]PF6 (VIII) have been
络合物[(C 5 H ^ 5 Co)的2(μ-PME 2)2(μ-H)] PF 6用Pme(IIA)反应3 PME 2 H或P(OME)3在甲醇中通过打开氢化桥和形成[C的5 ħ 5(L)的Co(μ-PME 2)2的Co(H)C 5 H ^ 5 ] PF 6(L = PME 3(III)为:L = PME 2 H(IV)为:L = P (OMe)3(V))。二甲基膦配合物IV在硝基甲烷中的溶液提供了多种产物的混合物,这些化合物反式- [C 5 H ^ 5(PME 2 2H)钴(μ-PME 2)] 2 }(PF 6)2(VII)和[(C 5 H ^ 5 Co)的2(μ-PME 2)3 ] PF已经分离出6(VIII)。IIa与异氰酸酯CNR(R = Me,Bu t,Ph)的反应过程强烈依赖于溶剂。在硝基甲烷,组合物的产品的顺式-和/或反式- [C 5 H ^ 5(CNR)的Co(μ-PME
Organophosphorus chemistry. Part XI. Reactions of dimethyl- and bis(trifluoromethyl)-phosphine with olefins, and photochemical reaction of ethyl(bistrifluoromethyl)phosphine with ethylene
作者:R. Fields、R. N. Haszeldine、N. F. Wood
DOI:10.1039/j39700001370
日期:——
ratio 28 : 72, but with propene only dimethyl-n-propylphosphine is produced. Bis(trifluoromethyl) phosphine gives only one adduct with each olefin. In all cases the product, or the major product where two are formed, is that predicted on the basis of formation of the most stable intermediate radical. Neither bis(trifluoromethyl)phosphine nor phosphine react with 1,1,3,3,3-pentafluoropropene under u.v. irradiation
Reactions of hexafluoroacetone with phosphorus(III) compounds
作者:Helmut Kischkel、Gerd-Volker Röschenthaler
DOI:10.1016/s0022-1139(00)83330-8
日期:1985.8
Hexafluoroacetone reacts with PH3 and MePH2 under insertion into the PH bond yielding either H2PC(CF3)2OH and HP[C(CF3)2OH]2 or Me(H)PC(CF3)2OH and MeP[C(CF3)2OH]2 whereas Me2PH gives a mixture of Me2P(F)[OCH(CF3)2]2, Me2PPMe2, and Me2P(O)OCH(CF3)2. Me3P forms a dialkoxyphosphorane if there is a 1:2 ratio (Me3P:(CF3)2CO). H2PC(CF3)2OH and HP[C(CF3)2OH]2 are easily O-silylated to give H2PC(CF3)2OSiMe3
Reactions of hexamethylsilirane with primary and secondary phosphines and with chlorophosphines
作者:Wolfgang Hölderich、Dietmar Seyferth
DOI:10.1016/s0022-328x(00)92052-7
日期:1978.6
C6H5, Me3Si, cleave the SiC2 ring of hexamethylsilirane in an exothermic reaction at room temperature to give silylphosphines, R2PSiMe2(CMe2CHMe2). Methylphosphine reacts similarly. The reaction of the silirane with RPCl2 (R = Me, Et, Ph) proceeds differently, giving Me2SiCl2, Me2CCMe2 and cyclo-[RP]5. With Ph2PCl, the reaction with the silirane gives Ph2PPPh2.