ChemInform Abstract: Pyridine Hydrobromide Perbromide Mediated Regioselective Heterocyclization of ortho-Cyclohexenyl Phenols.
Abstract
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ChemInform Abstract
Treatment of a series of title compounds with PyH+Br- 3 affords the ring system (II). Only in the case of (III) and (V) no cyclization is observed.