[EN] TRIDENTATE PINCER LIGAND SUPPORTED METAL-ALKYLIDYNE AND METALLACYCLOALKYLENE COMPLEXES FOR ALKYNE POLYMERIZATION [FR] COMPLEXES MÉTAL-ALKYLIDYNE ET MÉTALLACYCLOALKYLÈNE SUPPORTÉS SUR DES LIGANDS PINCES TRICOORDINÉS POUR LA POLYMÉRISATION D'ALCYNES
[EN] TRIDENTATE PINCER LIGAND SUPPORTED METAL-ALKYLIDYNE AND METALLACYCLOALKYLENE COMPLEXES FOR ALKYNE POLYMERIZATION [FR] COMPLEXES MÉTAL-ALKYLIDYNE ET MÉTALLACYCLOALKYLÈNE SUPPORTÉS SUR DES LIGANDS PINCES TRICOORDINÉS POUR LA POLYMÉRISATION D'ALCYNES
An OCO<sup>3–</sup> Trianionic Pincer Tungsten(VI) Alkylidyne: Rational Design of a Highly Active Alkyne Polymerization Catalyst
作者:Soumya Sarkar、Kevin P. McGowan、Subramaniam Kuppuswamy、Ion Ghiviriga、Khalil A. Abboud、Adam S. Veige
DOI:10.1021/ja2117975
日期:2012.3.14
Synthesis, characterization, and catalytic alkyne polymerization results for the first trianionic pincer alkylidyne complex, [(BuOCO)-Bu-t]W CC(CH3)(3)(THF)(2) (6), are described. Complex 6 is a highly active catalyst for the polymerization of acetylenes and exhibits a high turnover number (4371), activity (1.05 x 10(6) g(PPA) mol(cat)(-1) h(-1)), and yield (87%) for the polymerization of 1-ethynyl-4-fluorobenzene.