Practical Synthesis of Sultams via Sulfonamide Dianion Alkylation: Application to the Synthesis of Chiral Sultams
Jaemoon Lee, Yong-Li Zhong, Robert A. Reamer, and David Askin
Org Lett 2003, 5, pp 4175 - 4177
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http://dx.doi.org/10.1021/ol0356183