Novel Conversion of Selenium-containing Five-membered Aromatics to Nitrogen-containing Six-membered Aromatics via Hetero Diels-Alder Reaction with Acetylenic Dienophiles

Article abstract of DOI:10.1246/cl.1991.2043

Treatment of selenium-containing five-membered heteroaromatics with acetylenic dienophiles afforded several nitrogen heterocycles in good to moderate yields by using thermal reaction conditions.These reactions were thought tp proceed through sequential <4+2> cycloaddition-selenium extrusion pathway.