Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 70, Issue 7, Pages 2696-2700Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo047758b
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The CuI/L-proline sodium salt catalyzed coupling reaction of aryl halides with sulfinic acid salts readily occurs at 80-95 degrees C in DMSO to give the corresponding aryl sulfones in good to excellent yields. This process is well-tolerated by a wide range of functional groups including hydroxyl, amino, acetanilide, ketone, ester, and nitrile. Using this method, 4-phenylsulfonyl- and 4-methanesulfonyl-substituted L-phenylalanine derivatives are prepared.
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