[3+2] Cycloaddition reactions of (E) and (Z)-1,2-difluorovinylphenylsulfones with diphenylnitrone, ethyl- and mesitylnitrile oxides and diphenylnitrile imine have been studied. The behaviour of these new dipolarophiles has been compared to that of the related phenylvinylsulfone and 1-fluorovinylphenylsulfone.
De Tollenaere, C., & Ghosez, L. (1997). [3+2] cycloadditions with 1,2-difluorovinylphenylsulfone. Societes Chimiques Belges. Bulletin, 106(11), 677-683. https://hdl.handle.net/2078.5/85491 (Original work published 1997)