An OCO<sup>3–</sup> Trianionic Pincer Tungsten(VI)
Alkylidyne: Rational Design of a Highly Active Alkyne Polymerization
Catalyst
- Publication date
- Publisher
Abstract
Synthesis, characterization, and catalytic alkyne polymerization
results for the first trianionic pincer alkylidyne complex, [<sup><i>t</i></sup>BuOCO]WCC(CH<sub>3</sub>)<sub>3</sub>(THF)<sub>2</sub> (<b>6</b>), are described. Complex <b>6</b> is a highly active catalyst for the polymerization of acetylenes
and exhibits a high turnover number (4371), activity (1.05 ×
10<sup>6</sup> g<sub>PPA</sub> mol<sub>cat</sub><sup>–1</sup> h<sup>–1</sup>), and yield (87%) for the polymerization of
1-ethynyl-4-fluorobenzene
