M. Erdelyi et A. Gogoll, Rapid homogeneous-phase Sonogashira coupling reactions using controlled microwave heating, J ORG CHEM, 66(12), 2001, pp. 4165-4169
A microwave-enhanced, rapid and efficient homogeneous-phase version of the
Sonogashira reaction is presented. It has been applied to the coupling of a
ryl iodides, bromides, triflates, and aryl chloride, as well as pyridine an
d thiophene derivatives with trimethylsilylacetylene. Excellent yields (80-
95%) for substrates containing a large variety of substituents in different
positions are obtained in 5-25 min.