{platinum(II)(μ-chloride)(pentafluorophenyl)(tetrahydrothiophene)}2 、 Oct-7-enyl(diphenyl)phosphane 以
not given 为溶剂,
以90%的产率得到trans-Pt(C6F5)Cl((C6H5)2P(CH2)6CHCH2)2
参考文献:
名称:
Olefin metatheses in metal coordination spheres: novel trans-spanning bidentate and facially-spanning tridentate macrocyclic phosphine complexes
sp Carbon Chains Surrounded by sp<sup>3</sup> Carbon Double Helices: Directed Syntheses of Wirelike Pt(C⋮C)<i><sub>n</sub></i>Pt Moieties That Are Spanned by Two P(CH<sub>2</sub>)<i><sub>m</sub></i>P Linkages via Alkene Metathesis
作者:Laura de Quadras、Eike B. Bauer、Wolfgang Mohr、James C. Bohling、Thomas B. Peters、José Miguel Martín-Alvarez、Frank Hampel、John A. Gladysz
DOI:10.1021/ja071612n
日期:2007.7.1
termini-spanning diphosphines and trans,trans-(C6F5)(Ph2P(CH2)mPPh2)Pt(CC)nPt(Ph2P(CH2)mPPh2)(C6F5) with trans-spanning diphosphines (m = 2m' + 2; n = 4, 6). The latter (n = 4) are independently synthesized by similar metatheses/hydrogenations of 1a-d to give trans-(C6F5)(Ph2P(CH2)mPPh2)PtCl (49-59%), followed by analogous introductions of (CC)4 chains (66-77%). Crystal structures of complexes with termini-spanning
sp Carbon Chains Surrounded by sp3 Carbon Double Helices: A Class of Molecules that are Accessible by Self-Assembly and Models for “Insulated” Molecular-Scale Devices We thank the Deutsche Forschungsgemeinschaft (SFB 583), Johnson Matthey PMC (platinum loan), the Spanish Ministerio de Educación y Ciencia, and the Fulbright Commission (Fellowships, J.M.M.-A.) for support, and Dr. A. M. Arif for assistance with the analysis of one crystal structure.
作者:Jürgen Stahl、James C. Bohling、Eike B. Bauer、Thomas B. Peters、Wolfgang Mohr、José M. Martín-Alvarez、Frank Hampel、John A. Gladysz
Alkene Metatheses in Transition Metal Coordination Spheres: Effect of Ring Size and Substitution on the Efficiencies of Macrocyclizations That Join <i>trans</i> Positions of Square-Planar Platinum Complexes
作者:Eike B. Bauer、Frank Hampel、J. A. Gladysz
DOI:10.1021/om034121u
日期:2003.12.1
Br(CH2)nCHCH2 give the phosphines PPh2(CH2)nCHCH2 (n = a, 4; b, 6; c, 8; d, 9; 95−41%), which are combined with the platinum tetrahydrothiophene complex [Pt(μ-Cl)(C6F5)(S(CH2CH2−)2)]2 to give trans-(Cl)(C6F5)Pt(PPh2(CH2)nCHCH2)2 (3a−d, 71−54%). When treated with Grubbs' catalyst, ring-closing alkene metatheses occur to give 13- to 23-membered macrocycles with trans-spanning diphosphine ligands (96−85%
Olefin metatheses in metal coordination spheres: novel trans-spanning bidentate and facially-spanning tridentate macrocyclic phosphine complexes
作者:Eike B. Bauer、Johannes Ruwwe、Frank A. Hampel、Slawomir Szafert、J. A. Gladysz、José Miguel Martín-Alvarez、Thomas B. Peters、James C. Bohling、Tadeusz Lis
DOI:10.1039/b007405p
日期:——
The title reaction is applied to square-planar rhodium and
platinum complexes with trans
PPh2(CH2)6CHCH2
ligands, and square-planar platinum or octahedral tungsten complexes with
trans or facial
PPh[(CH2)6CHCH2]2
ligands. Ring-closing (poly)macrocyclizations occur.