I. Papoutsis et al., THE CHEMISTRY OF 2-OXIDO-3-PHENYLIODONIO-1,4-BENZOQUINONES - TRANSFORMATION TO 2-CYCLOPENTENE-1,4-DIONES AND CYCLOADDITIONS, Tetrahedron letters, 35(45), 1994, pp. 8449-8452
The conversion of substituted 2-hydroxy-1,4-benzoquinones, 1, to 2-cyc
lopentene-1,4-diones, 3, is effected by thermolysis of their iodonium
zwitterions, 2. Some cycloadditions through 2 are also described.