Monophosphine and diphosphine ligands for diplatinum polyynediyl complexes: Efficient syntheses of new functionality-containing systems and model compounds
作者:Laura de Quadras、Jürgen Stahl、Fedor Zhuravlev、John A. Gladysz
DOI:10.1016/j.jorganchem.2006.12.023
日期:2007.4
similarly yield R2P(CH2)mPR2 (m/R = 8/a, 95%; 14/a, 96%; 14/p-C6H4-t-Bu, 98%). Reactions of KPPh2 with Br(CH2)m′CHCH2and Br(CH2)7CH3 give the corresponding monophosphines Ph2P(CH2)m′CHCH2 (m′ = 7, 82%; 10, 84%) and Ph2P(CH2)7CH3 (85%). When the former is combined with [Pt(μ-Cl)(C6F5)(tht)]2 (tht = tetrahydrothiophene), trans-(C6F5)(Ph2P(CH2)m′CHCH2)2PtCl (77–70%) is isolated. When the latter (excess)