Abstract
An efficient and unprecedented [4+3] cycloaddition between in situ generated aza-<i>o</i>-quinone methides and azomethine imines via an aza-Michael/aminalization sequence has been developed. The scalable protocol allows to expeditiously assemble a valuable heterocyclic system incorporating tetrahydroisoquinoline and benzotriazepine scaffolds in good to excellent yields under mild conditions.
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