Competing [4 + 2] and [3 + 2] cycloaddition in the reactions of nucleophilic olefins with ethyl 3-(toluene-p-sulphonylazo)but-2-enoate - Clarke, Simon J.; Davies, David E.; Gilchrist, Thomas L. (Journal of the Chemical Society, Perkin Transactions 1, 1983)
Keywords: Chemical reactivity; Chemistry; Exact sciences and technology; Organic chemistry; Reactivity and mechanisms; Solvent effect; Five membered ring; Cycloaddition; Nucleophilic reaction; Nitrogen heterocycle; Enamine; Bicyclic compound; Competitive reaction; Enol ether; Conjugated compound; Tricyclic compound