T. Okita et M. Isobe, PALLADIUM-CATALYZED COUPLING OF HETEROAROMATIC TRIFLATES WITH ACETYLENE AND ITS APPLICATION FOR A DYNEMICIN-A INTERMEDIATE, Tetrahedron, 51(13), 1995, pp. 3737-3744
An acetylene moiety was introduced to a carbonyl carbon of amide group
via its triflate in the presence of palladium catalyst, The reaction
proceeded smoothly under mild conditions. Utilizing this methodology,
a model compound of dynemicin A bearing acetylene group was synthesize
d.