Parikh–Doering oxidation–dehydration–Ugi cyclization cascade in the development of lactams from formidoalkanols (3>chain length>7)
作者:Imran A. Khan、Anil K. Saxena
DOI:10.1016/j.tet.2011.10.050
日期:2012.1
De novo incorporation of N-formylated aminols as strategic substrates in legendary Ugi cyclization. Lactamization of N-formido alkanols is accomplished by a novel Parikh Doering oxidation dehydration Ugi cyclization cascade leading to the formation of lactams up to eight carbons (ring size; n=1-4) in moderate yields using formidoaminol, substituted aniline, and aliphatic/aromatic carboxylic acid derivatives as starting materials. (C) 2011 Elsevier Ltd. All rights reserved.