Stereodefined synthesis of cyclic amidines by domino 1,7-H shift and 6p electrocyclisation
Chemical Communications(2023)
Abstract
Unsaturated N-2-sulfonyl amidines are transformed into valuable N-heterocyclic products when heated with BF2OTf. Mechanism studies suggest a domino 1,7-H shift, activating a C-H bond, followed by electrocylisation that results in stereodefined cyclic amidines.
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Key words
cyclic amidines,synthesis
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