A simple, one-pot, three-component, green synthesis of a wide range of propargylamines is reported by A(3)-coupling (aldehyde, alkyne and amine) via C-H activation of alkynes using [Zn(l-proline)(2)] as an efficient and reusable heterogeneous catalyst. High catalytic activity was achieved in comparatively low temperature under solvent-free conditions. All reactions were carried out in an open atmosphere without the use of any co-catalyst/additive. [GRAPHICS] .