Wiley-VCH Verlag, ChemInform, 35(40), 2009
Royal Society of Chemistry, Chemical Communications, 17, p. 2368
DOI: 10.1039/b819613c
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Ambiphilic allenes are generated by an organocatalyzed domino reaction of alkyl propiolates and aromatic 1,2-diketones; in the absence of any external chemical agent, these allenes perform a thermally-driven dimerization reaction to generate the corresponding fully-substituted cyclobutanes in a regio- and highly stereoselective manner.