A Convenient Synthesis to N-Aryl-Substituted 4-Piperidones
摘要:
[GRAPHICS]A general and efficient procedure for the synthesis of N-aryl-substituted 4-piperidones was developed. The general methodology was applied to the synthesis of several different N-aryl-4-piperidones utilizing an expedient two-step process.
A Convenient Synthesis to <i>N</i>-Aryl-Substituted 4-Piperidones
作者:David R. Tortolani、Michael A. Poss
DOI:10.1021/ol990930r
日期:1999.10.1
[GRAPHICS]A general and efficient procedure for the synthesis of N-aryl-substituted 4-piperidones was developed. The general methodology was applied to the synthesis of several different N-aryl-4-piperidones utilizing an expedient two-step process.
Synthesis of 2,3‐Dihydro‐4‐pyridones, 4‐Quinolones, and 2,3‐Dihydro‐4‐azocinones by Visible‐Light Photocatalytic Aerobic Dehydrogenation
作者:Adrian Sevenich、Paulina Sophie Mark、Torsten Behrendt、Jonathan Groß、Till Opatz
DOI:10.1002/ejoc.201900584
日期:2020.3.15
A protocol for the synthesis of three types of N‐heterocycles was developed. Cyclic enaminones were prepared under eco‐friendly conditions by photocatalyticdehydrogenation using rhodamine 6G as inexpensive photocatalyst and oxygen as the terminal oxidant. The method was extended to access azocinones by a [2+2] cycloaddition/ring‐expansion sequence in a one‐pot procedure.