Table 2. Intramolecular AAC of Allylic Azidesa.
Conditions: toluene, reflux, 2–8 h.
Starting azides exist as mixtures of terminal and internal azide stereoisomers; ratios noted indicate specific examples used in the experiment noted (1H NMR).11
Ratio determined by NMR analysis of crude reaction mixtures.
The relative stereochemistry of triazoles 27a, 28a, and 29a was determined by X-ray crystallography (Supporting Information).
Inseparable mixtures.