The chemist characterized several novel alkynyls using NMR and mass spectrometry.

Recent advances in catalysis have enabled selective alkynylations of complex molecules under mild conditions.

The chemist introduced an alkynyl substituent into the molecule to enhance its reactivity.

An alkynyl served as the reactive intermediate in the palladium-catalyzed cross-coupling.

The alkynylation of the substrate proceeded smoothly under the copper-catalyzed conditions.

The alkynylated intermediate exhibited increased reactivity in the coupling reaction.