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Abstract A new tandem route leading to imidazo1,2‐ a pyridines has been explored through the direct amination of aryl propargylic alcohols with 2‐aminopyridines and their subsequent intramolecular cycloisomerization. A ZnCl 2 /CuCl system has been developed to promote this transformation, which resulted in various imidazo1,2‐ a pyridines in moderate to good yields.
Liu et al. (Wed,) studied this question.