Direct synthesis of sulfonamides and activated sulfonate esters from sulfonic acids.

J Am Chem Soc

The Christopher Ingold Laboratories, Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.

Published: February 2004

A general new method for the preparation of sulfonamides and activated sulfonate esters by the direct coupling of sulfonic acid salts with amines and alcohols using the reagent triphenylphosphine ditriflate is described. A new reusable polymer-supported reagent for these transformations under heterogeneous conditions is also described. These methods provide a fundamentally new approach to making small molecules containing the sulfonamide functional group.

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http://dx.doi.org/10.1021/ja0397658DOI Listing

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