Diversity-Oriented Approaches to Polycycles and Heterocycles via Enyne Metathesis and Diels–Alder Reaction as Key Steps

[Image: see text] Enyne metathesis (EM) has extensively been used to prepare diverse polycycles and heterocycles. EM in combination with Diels–Alder (DA) reaction has been used to prepare densely functionalized targets in a simple manner. In this mini-review, we discuss the various diversity-oriented approaches reported from our laboratory to prepare a variety of organic frameworks by a synergistic combination of EM and DA reactions. Some of the end products are useful intermediates for the synthesis of complex organic targets.