Thermal behavior of dipolarophile-containing 2-azidocarbonylpyrroles and-indoles

摘要

The thermal reaction of TV-allyl- or N-propargyl-2-azidocarbonyl-pyrroles (2) or -indoles (9) involves competition between intramolecular azide cycloaddition and Curtius rearrangement.Azide cycloadditions were the object of recent investigations as the ideal representative of the "click"chemistry concept.