Annelation of perfluorinated heteroaromatic systems by 1,3-dicarbonyl derivatives
摘要:
Reactions of various perfluorinated heteroaromatic substrates such as tetrafluoro-4-cyanopyridine, tetrafluoropyrazine and tetrafluoropyridazine with 1,3-dicarbonyl systems gave corresponding [5,6]-ring fused furo derivatives. Subsequent reactions of the [5,6] bicyclic scaffolds with nucleophiles gave some highly functionalised heteroaromatic systems. (C) 2010 Elsevier Ltd. All rights reserved.