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Published on: November 21, 2017
Ring Opening of N-Acyl Lactams Using Nickel-Catalyzed Transamidation
Karthik Rajan Rajamanickam1, Sunwoo Lee1
1Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea.
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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