Synthesis and SNAr reactions of new dioxins and predioxins
作者:Vladimir V Litvak、Olga A Korshunova、Eugenia G Saikovich
DOI:10.1016/s0045-6535(00)00399-4
日期:2001.5
A method for two-step synthesis of dioxin derivatives containing the perfluoropyridine ring has been suggested. It consists of the preparation of corresponding predioxin in the first stage and its cyclization in the next stage. A number of new predioxins have been synthesized using the interaction of polyhalogenpyridines with pyrocatechin and its 4,5-dihaloid derivatives. Formation of dioxins on the