595-89-1Relevant articles and documents
ORGANOMETALLOIDAL DERIVATIVES OF THE TRANSITION METALS X. PHOTOCHEMICAL THERMAL AND SO2 INDUCED 1,2-PHENYL AND 1,2-SULPHINATOPHENYL MIGRATIONS FROM LEAD TO TRANSITION METALS IN THE SYSTEM 5-C5H5)M(CO)nPbPh3> (M = Fe, Cr, Mo, W)
Pannell, Keith H.,Kapoor, Ramesh N.
, p. 59 - 63 (1984)
The complexes 5-C5H5)M(CO)nPbPh3> (M = Fe, Cr, Mo, W) have been studied with respect to their thermal and photochemical stability and their reactivity with respect to SO2.The iron complex is the only complex that exhibits the ability to decompose via a 1,2-phenyl migration to the transition metal under thermal conditions, but photochemically the tungsten complex also exhibits this behaviour.All complexes react readily with SO2 to yield the correponding sulphinatophenyl complexes, LM-SO2-Ph, in high yield.
Synthesis and Chemistry of Bis(borylphosphino)silanes and -germanes
Chen, Tuqiang,Duesler, Eileen N.,Paine, Robert T.,Noeth, Heinrich
, p. 4993 - 4999 (2008/10/08)
The reactions of Me2SiCl2, Ph2SiCl2, and Ph2GeCl2 with LiP(H)B(N(i)Pr2)2in a 1:2 ratio and the reaction of Ph2SiCl2 with LiP(H)B(N(i)Pr2)[N(SiM e3)2] in a 1:2 ratio give good yields of the respective diphosphinosilanes, Me2Si[P(H)B(N(i)Pr2)2]2, Ph2Si[P(H)B(N(i)Pr2)2]2, Ph2Ge[P(H)B(N(i)Pr2)2]2, and Ph2Si[P(H)B(N(i)Pr2)[N(SiMe3)2]]2. These species, when combined with BuLi in a 1:2 ratio, give lithium diphosphinosilanes and -germanes of the general type (DME.Li)2{[PB(NR2)2]2ER'2}. All of the species have been characterized by spectroscopic methods. The molecular structuresof three of the lithio compounds, (DME.Li)2{[PB(N(i)Pr2)2]2SiPh2} (11), (DME.Li)2{[PB(N(i)Pr2)N(SiMe3)2]2SiPh2} (15), and (DME.Li)2{[PB(N(i)Pr2 )2]2GePh2} (13), have been determined by X-ray diffraction techniques. 11 crystallized in the triclinic space group P1- with a = 11.071(2) ?, b = 14.937(3) ?, c = 18.080(4) ?, α = 91.31(3)°, β = 101.23(3)°, γ = 109.95(3)°, and Z = 2, and 13 crystallized in the triclinic space group P1- with a = 11.083(1) ?, b = 14.978(2) ?, c = 18.134(2) ?, α = 91.17(1)°,β = 101.43(1)°, γ = 110.05(1)°, and Z = 2. 15 crystallized in the monoclinic space group P21/n with a = 11.939(2) .ANG ., b = 24.516(3) ?, c = 21.572(3) ?, β = 101.52(1)°,and Z = 4. The reactions of the lithio compounds were surveyed with R2E Cl2 reagents. The metathesis reactions are sluggish, but the 1:1 reaction of (DME.Li)2{[PB(N(i)Pr2)2]2GePh2} with (t)Bu2SnCl2 gave the four-membered-ring compound Ph2GePB(N(i)Pr2)2Sn((t)Bu)2PB(N(i)Pr2)2. The 1:2 reaction of Me2(Cl)SiSi(Cl)Me2 with LiP(H)B(N(i)Pr2)2 yielded the (borylphosphino)silane [Me2SiP(H)B(N(i)Pr2)2]2.
Multi Electron Ligands, VIII. Connection of the all-trans-1,5,9-Cyclododecatriene System with Additional Donor Groups
Kauffmann, Thomas,Fauss, Waltraud
, p. 2330 - 2342 (2007/10/02)
Nine potential ligands (2 - 10) for transition metals were obtained from the well accessible all-trans-1,5,9-cyclododecatriene (ttt-CDT) by introduction of donor groups.The synthesis was achieved via ttt-3-bromo-CDT (1) and the hitherto unknown ttt-3-iodo-CDT (2).To the contrary, introduction of donor groups via nucleophilic ttt-CDT derivatives was successful in one case only (15). ttt-3-Lithio-CDT (13), obtained by organoelement-Li exchange, revealed to be extremely basic (quick deprotonation of diethyl ether at low temperature).In situ made Ni0 complexes of someof the new ligands failed to oligomerize or polymerize butadiene.
