Iron‐Catalyzed Transfer Hydrogenation: Divergent Synthesis of Quinolines and Quinolones from <i>ortho</i>‐Nitrobenzyl Alcohols
作者:Simin Chun、Ramachandra Reddy Putta、Junhwa Hong、Seung Hyun Choi、Dong‐Chan Oh、Suckchang Hong
DOI:10.1002/adsc.202300661
日期:2023.10.13
report the divergent synthesis of quinolines and quinolones via a transferhydrogenativecondensation of ortho-nitrobenzyl alcohols in one step. The reaction proceeded using the cyclopentadienone iron complex without any additional redox reagents. After transferhydrogenation between ortho-nitrobenzyl alcohols and secondary alcohols, the subsequent Friedländer annulation affords polysubstituted quinoline
1,5-Diaryl-2,3-pyrrolidinediones. XI. Observations on Synthetic Methods and the Effect of 4-Substituents on Chemical Properties
作者:Wyman R. Vaughan、Irene S. Covey
DOI:10.1021/ja01542a041
日期:1958.5
Ketene Dithioacetals in the Aza-Diels−Alder Reaction with <i>N</i>-Arylimines: A Versatile Approach to Tetrahydroquinolines, 2,3-Dihydro-4-quinolones, and 4-Quinolones
[GRAPHICS]The first successful use of ketene dithioacetals as dienophiles in the aza-Diels-Alder reaction with N-arylimines is described. Among the ketene dithioacetals tested, 1,4-benzodithlafulvenes are most effective in assembling the tetrahydroquinoline core. Subsequent chemical manipulations provide a concise and divergent approach to the synthesis of 2,3-tetrahydroquinolines, 2,3-dihydro-4-quinolones, and 4-quinolones.
KAPPE T.; GOLSER W.; HARIRI M.; STADTBAUER W., CHEM. BER., 1979, 112, NO 5, 1585-1594