A novel and efficient method is described for the preparation
of sulfonyl chlorides from sulfonic acids using TAPC as chlorinating
agent. Mild reaction conditions, shorter reaction times, high efficiencies,
cost-effectiveness, and facile isolation of the desired products
make the present methodology a practical alternative and will provide
a valuable synthetic tool for various pharmaceutical applications.
sulfonyl chlorides - sulfonic acids - chlorinating
agent - solvent-free conditions - 1,3,5-triazo-2,4,6-triphosphorine-2,2,4,4,6,6-hexachloride
(TAPC)