NON-PHOTOCHEMICAL 2+2 CYCLOADDITIONS OF ACYCLIC ENONES AND ALKENES
An efficient synthesis of substituted cyclobutanes is reported via Ti(IV) catalyzed 2+2 cycloadditions of methoxymethyl vinyl ketone and methyl vinyl ketone with alkenes.
Engler, Thomas A.,Ali, Mohammed Hashmat,Velde, David Vander