Sulfoximines: a reusable directing group for chemo- and regioselective ortho C-H oxidation of arenes.
摘要：
Sulfoximines direct: A new protocol for the chemo- and regioselective ortho CH acetoxylation of arenes in N-benzoylated sulfoximines is reported. The sulfoximine directing group is easily detached from the CH oxidation product through acid-promoted hydrolysis, isolated, and reused (see scheme). The meta-substituted phenols are synthesized following this strategy and the stereointegrity of the sulfoximine is preserved in this transformation. C(sp3)H acetoxylation of the methyl group is also demonstrated.
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DOI：
10.1002/chem.201200092
被引量：
年份：
2012
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