Thiazoles and oxazoles represent a predominant structural motif in many natural compounds, organic dyes, and pharmaceuticals.[1–3] In recent years, thiazoles and oxazoles that are monosubstituted at the C2position have been widely used in organic synthesis as building blocks owing to their versatile reactivity.[4] However, a potential limitation for the application of 2-substituted thiazoles and oxazoles could be the lack of ...