| 摘要 |
A process for preparing 1,3-dioxoles of formula: <CHEM> in which X1 and X3, like or different from each other, are F or H, X5 and x6 , like or different from each other, are F or CF3, by dehalogenation reaction of the corresponding 4,5-dihalodioxolanes in the presence of a dehalogenation agent at a temperature ranging from + 30 DEG to + 130 DEG C. The starting dioxolanes are essentially in the isomeric form anti. |
