Palladium(II) Complexes of 1‐Phosphaisoprene Molecules and Polymers: Reversible Cross‐Linking of a Phosphorus‐Containing Polymer
作者:Henry T. G. Walsgrove、Khadiza (Rodella) K. Chowdhury、Philipp Dabringhaus、Brian O. Patrick、Derek P. Gates
DOI:10.1002/ejic.202300182
日期:2023.7.13
Palladium(II) complexes of phosphorus rubber [poly(1-phopshaisoprene)] are disclosed. Addition of [Pd(cod)Cl2] to a solution of poly(1-phosphaisoprene) resulted in gelation of the material which was reversed by the addition of a competing molecular phosphine ligand. By contrast, the macromolecular complex formed from the addition of [Pd(η3-C3H5)(μ-Cl)]2 to poly(1-phospaisoprene) did not exhibit gelation
公开了磷橡胶[聚(1-磷异戊二烯)]的钯(II)络合物。将[Pd(cod)Cl 2 ]添加到聚(1-磷异戊二烯)溶液中导致材料凝胶化,通过添加竞争分子膦配体可逆转该凝胶化。相比之下,由[Pd(η 3 -C 3 H 5 )(μ-Cl)] 2添加到聚(1-磷异戊二烯)形成的大分子复合物没有表现出凝胶化。这些结果表明聚合物的交联促进凝胶形成。
Toward Metathesis Reactions on Vinylphosphaalkenes
作者:Elisabet Öberg、Andreas Orthaber、Marie-Pierre Santoni、Fredrick Howard、Sascha Ott
DOI:10.1080/10426507.2012.743145
日期:2013.1.1
Attempts to utilize C-ethylenic phosphaalkenes in metathesis reactions are discussed. Unprecedented reactivity is observed where the vinylphosphaalkene undergoes the first step of the catalytic cycle and cross-metathesis with the phenylmethylene moiety of Grubbs 2nd generation catalyst. However, homo-metathesis reaction to form 1,6-diphosphahexa-1,3,5-triene is not observed, presumably due to steric constraints.
Transition Metal-Induced Cyclization of 1-Phosphabutadienes: Selective Formation of 1-Phosphet-2-ene or P═C-Substituted Phosphacyclohexene Ligands
作者:Henry T. G. Walsgrove、Brian O. Patrick、Derek P. Gates