Synthesis of cyano-substituted γ-lactams through a copper-catalyzed cascade cyclization/cyanation reaction
作者:Wen Liu、Liang Wang、Haiping Mu、Qian Zhang、Zeguo Fang、Dong Li
DOI:10.1039/d2ob02086f
日期:——
A convenient copper-catalyzedcascade cyclization/cyanation reaction for the construction of cyano-containing γ-lactams was developed. The protocol employed TMSCN as the cyano source and proceeded in water under simple conditions. Mechanistic studies indicated this reaction involved an amidyl radical initiated cascade 5-exo-trig cyclization/cyanation process. It is capable of generating a series of
Silver-catalyzed cascade cyclization and functionalization of <i>N</i>-aryl-4-pentenamides: an efficient route to γ-lactam-substituted quinone derivatives
作者:Zeguo Fang、Lin Xie、Liang Wang、Qian Zhang、Dong Li
DOI:10.1039/d2ra05283k
日期:——
synthesis of γ-lactam-substituted quinone derivativesthrough a Ag2O-catalyzed cascade cyclization and functionalization of N-aryl-4-pentenamides has been developed. Related 2-oxazolidinone substituted quinone products can be also obtained with N-aryl allyl carbamates. The reactions proceed through an amidyl radical-initiated 5-exo-trig cyclization and followed radical addition to quinones. They provide an