F. Kazemi, H. Sharghi, M. Nasseri
Feb 1, 2004
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Journal
Synthesis
Abstract
A manipulatively simple and facile one-pot procedure for the synthesis of symmetrical anhydride is reported. Treatment of carboxylic acids with tosyl chloride in K 2CO3 media under solvent free conditions gives the corresponding anhydrides in good to ex- cellent yields in a short reaction time via carboxylic sulfonic anhy- dride as the key intermediate.