Cycloaddition reactions of Azatrienes with Sulfene
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Unprecedented cycloaddition reactions of azatrienes (1) with sulfene leading to the synthesis of functionalized thiazine-dioxide derivatives (5) are described. The reactions were found be highly regioselective resulting in the formation of only [4 + 2] cycloadducts.
Singh, P. and Bisetty, K. 'Cycloaddition Reactions of Azatrienes with Sulfene. International Journal of Organic Chemistry. 2 (2012): 121-125.