The authors thank for support by the Spanish Ministry of Science and Innovation (MICINN) (project number CTQ2010-19606), by the European Union (EU) (FEDER Program) and by the Government of Aragon (Research group E-10, Zaragoza, Spain). A. M. thanks the European Commission and European Social Fund (POR Calabria 2007/2013) for a grant.
nortropane analogues closely related with Calystegines have been prepared in excellent chemical yields and complete selectivity. A synthetic strategy based on consecutive nucleophilic allylation, oxidation, and intramolecular dipolar cycloaddition was developed. The formation of key intermediate cycloadducts were observed to take place through the recently confirmed thermally induceded 2-aza-Cope rearrangement