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    Magnesium Ethoxide Promoted Conversion of Nitriles to Amidines and Its Application in 5,6-Dihydroimidazobenzoxazepine Synthesis

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    Magnesium ethoxide has been shown to be a mild, safe, and scalable alternative to trimethylaluminum for the direct addition of amines to aryl nitriles to access cyclic amidines. A variety of electronically diverse oxa-, thia-, and diazepine products were successfully synthesized in moderate to high yields. Further elaboration of these compounds to 5,6-dihydroimidazobenzoxazepines, a privileged class of pharmacologically active heterocycles, highlights the utility of this method
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