Single‐Step Modular Synthesis of Unsaturated Morpholine N‐Oxides and Their Cycloaddition Reactions

Single‐Step Modular Synthesis of Unsaturated Morpholine N‐Oxides and Their Cycloaddition Reactions: A single‐flask procedure for the generation of α‐keto‐N‐alkenylnitrones through a Chan–Lam coupling and subsequent spontaneous 6π electrocyclization of these intermediates for the synthesis of 2H‐1,4‐oxazine...

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