Alkene metathesis is now an established and powerful tool for organic, bioorganic, 2 and polymer synthesis. 3, 4 The conceptually related process of alkyne metathesis, however, has found much less attention. Metathesis of CC triple bonds by molybdenum/phenol species has been known since the 1970s5 but was never developed into an established synthetic method. A recent report describes the metathesis of internal alkynes at elevated ...
