Figure 4.

Substrate Scope for intermolecular homo/cross coupling.^a,b

^aReaction conditions for homo-coupling: 1% catalyst and 2% Phen was added to a MeCN solution (5 mL) of alkyne (1 mmol) and PIDA (1 mmol), and reaction was running at 50 °C. Reaction conditions for cross-coupling: 5 mol% catalyst and 10% Phen was added to a MeCN solution (800 uL) of aryl alkyne (0.2 mmol), aliphatic alkyne (0.6 mmol), and PIDA (0.4 mmol), and reaction was running at 50 °C^b Isolated yield.