e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
PHOSPHONIUM YLIDS, IV. 1 The Reaction of Tetrahalo-o-benzoquinones with Diphenylmethylenetriphenylphosphoraneane Fluorenylidenetriphenylphosphoranes. …
MM Sidky, LS Boulos
Index: Sidky, M. M.; Boulos, L. S. Phosphorus and Sulfur and the Related Elements, 1984 , vol. 19, p. 27 - 30
Abstract A novel synthesis of 1, 3-dioxoles (6a),(6b) and (7a-d) by the action of diphenylmethylenetriphenylphosphorane (1) and fluorenylidenetriphenylphosphoranes (2) on tetrahalo-o-benzoquinones (5) is reported. A possible reaction mechanism is considered and the structural assignments are supported by chemical and physical evidence.