NOVEL SYNTHESIS OF DISUBSTITUTED ALKYNE USING MOLYBDENUM CATALYZED CROSS-ALKYNE METATHESIS

A novel disubstituted alkyne synthesis was developed using molybdenum catalyzed cross-alkyne metathesis by Mortreux's catalyst [Mo(CO)(6)-p- ClC6H4OH]. The reaction was carried out using Mo(CO)(6) (5 mol% for to tal amounts of alkynes) and p-ClC6H4OH (1 equiv.) in the presence of a n excess amount of another alkyne (3 similar to 11 equiv.) in refluxin g toluene.