CHROMENE TRIFLONES, COUMARIN TRIFLONES AND THEIR PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To develop novel and simple synthetic method for chromene triflones and coumarin triflones.SOLUTION: Chromene triflones and coumarin triflones of novel compound groups are obtained by using a 2-(2,2-dibromovinyl)phenyltrifluoromethanesulfonate derivative of a novel compound group as a reaction substrate, carrying out ThiaFries rearrangement of a 2-(2,2-dibromovinyl)phenyltrifluoromethanesulfonate derivative in the presence of a base and adding an electrophile.