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An efficient method for the synthesis of quinoxaline N-oxides proceeds by the dehydrogenative N-incorporation of simple imines by C(sp(2))-H and C(sp(3))-H bond functionalization. The overall transformation involves the cleavage of three C-H bonds. The reaction is easily handled and proceeds under mild conditions. Simple and readily available tert-butyl nitrite (TBN) was employed as the NO source.
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Chen et al. (2014) studied this question.
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