Abstract
Starting from C‐CF3‐substituted aldimines, trifluoromethyl β‐lactams were obtained as only products in the reaction with some α‐bromo esters in the presence of activated zinc dust. Different solvents, molar ratios, and temperature were tested to determine the best reaction conditions that led only to desired cyclic compounds. The influence of another ester group on the aldimine chain and the reaction diastereoselectivity were also considered.
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