Chemistry Letters, Vol.40, No.6, 612-613, 2011
Ring Expansion Approach to Azaspiro[4.5]decane Skeletons via Electrophilic Activation of Benzocyclobutenols Bearing Pyridyl Group
Facile construction of azaspiro[4.5]decane skeletons was enabled by the ring expansion of benzocyclobutenols substituted with a pyridyl group, triggered by electrophilic activation of the heteroaromatic moiety.