METHOD FOR PRODUCING CYCLIC CARBOXYLIC ORTHOESTER FLUORIDES AND CORRESPONDING COMPOUNDS

摘要

The invention relates to a process for the preparation of cyclic carboxylic acid orthoester fluorides in which a) at least one bis(alkylthio)carbenium salt is reacted with at least one organic compound containing at least two hydroxyl groups in the presence of at least one base, b) and subsequently, preferably in situ, the resultant thioorthoester is subjected to oxidative fluorodesulfurisation using a fluorinating agent and an oxidant to give the cyclic carboxylic acid orthoester fluoride.