Rajamanickam KR, Lee S. Ring Opening of
N-Acyl Lactams Using Nickel-Catalyzed Transamidation.
J Org Chem 2024. [PMID:
38173413 DOI:
10.1021/acs.joc.3c02486]
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Abstract
We successfully developed a nickel-catalyzed transamidation method for the ring opening of N-acyl lactams. The method involves a reaction between N-benzoylpyrrolidin-2-one derivatives and aniline derivatives, with Ni(PPh3)2Cl2 serving as the catalyst, 2,2'-bipyridine as the ligand, and manganese as the reducing agent. This reaction led to the formation of ring-opening-amidated products in good yields. Notably, the method exhibited excellent efficiency for producing the corresponding ring-opening transamidation products for various ring sizes, including four-, five-, six-, seven-, and eight-membered ring lactams.
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