A dual removable activating group enabled the Povarov reaction of N-arylalanine esters: synthesis of quinoline-4-carboxylate esters
作者:Xiaodong Jia、Shiwei Lü、Yu Yuan、Xuewen Zhang、Liang Zhang、Liangliang Luo
DOI:10.1039/c7ob00446j
日期:——
A dual removable activating group enabled Povarov reaction of N-arylalanine esters was reported. N-Arylalanine ester was utilized as the sole carbon source to generate N-arylimine and its tautomer, enamine, in situ by aerobic oxidation of sp3 C–H bonds, and then the consecutive reaction delivered the desired quinoline-4-carboxylate esters in high yields.
What Happens When the Terminal Aromatization is Blocked? Construction of 1,2-Dihydroquinoline Derivatives by<i>sp</i><sup>3</sup>CH Bond Oxidation of<i>N</i>-Arylalaninates
作者:Shiwei Lü、Yingzu Zhu、Xingge Ma、Xiaodong Jia
DOI:10.1002/adsc.201500885
日期:2016.3.31
aromatization‐blocked strategy, the 1,2‐dihydroquinoline skeleton was efficiently constructed by sp3 CH bond oxidation of N‐arylalaninates under catalytic radical cation salt‐promoted conditions. Investigation of the reaction scope shows broad generality and good functional group tolerance. This method provides a new way to synthesize 1,2‐dihydroquinoline derivatives from easily accessible starting materials