Ginjiro Tomizawa

Base-initiated reactions of N-fluoropyridinium salts; a novel cyclic carbene proposed as a reactive species

Abstract A new type of base-initiated reactions of pyridinium salts was found and a novel cyclic carbene was proposed as the reactive species.

Controlled selective fluorination with N-fluoropyridinium salt system

Abstract Controlled selective fluorination should be of great importance in preparing desired fluoroorganic molecules. We have developed N - fluoropyridinium salts as power and structure-variable fluorinating agents. In these studies, we found that counteranion part of the N -fluoropyridinium salts functions considerably in selective fluorination. This talk will discuss about the synthesis of a series of counteranion-bound N -fluoropyridinium salts and controlled selective fluorination with them.