1999 heterocyclic 4-membered rings

heterocyclic 4-membered ringsR 0055

39 - 108Palladium-Catalyzed Synthesis of β-Lactams via CarbonylativeCycloaddition of Benzyl and Allyl Halides with Imines. — Thestereoselective preparation of title compounds (IV) (6 examples) by [2 + 2]-cycloaddition of various imines (I) with halides and carbon monoxide in thepresence of a palladium catalyst in moderate to good yields is presented. —(CHO, CHAN SIK; JIANG, LI HONG; SHIM, SANG CHUL; Synth. Commun.29 (1999) 15, 2695-2703; Dep. Ind. Chem., Kyungpook Natl. Univ., Taegu702-701, S. Korea; EN)

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