Dutta S, Bhatt K, Cuffel F, Seidel D. Synthesis of Polycyclic Imidazoles via α-C-H/N-H Annulation of Alicyclic Amines.
SYNTHESIS-STUTTGART 2023;
55:2343-2352. [PMID:
38314182 PMCID:
PMC10836336 DOI:
10.1055/a-2022-1511]
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Abstract
Secondary alicyclic amines are converted to their corresponding ring-fused imidazoles in a simple procedure consisting of oxidative imine formation followed by a van Leusen reaction. Amines with an existing α-substituent undergo regioselective ring-fusion at the α'-position. This method was utilized in a synthesis of fadrozole.
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