Asymmetric domino aza-Michael–Michael reaction of o-N-protected aminophenyl α,β-unsaturated ketones: construction of chiral functionalized tetrahydroquinolines
作者:Shinae Kim、Ki-Tae Kang、Sung-Gon Kim
DOI:10.1016/j.tet.2014.05.114
日期:2014.8
The diastereo- and enantioselective synthesis of 2,3,4-trisubstitutedtetrahydroquinolines has been developed through organocatalytic domino aza-Michael–Michaelreaction of o-N-tosylaminophenyl α,β-unsaturated ketones with nitroalkenes. This useful and simple domino process afforded diverse highly functionalized tetrahydroquinolines, some of which are not easily accessible using other methodologies
A sequential [4 + 2]/[2 + 1] annulation of α-aryl vinylsulfoniums with 2-aminochalcones and 2-(2-aminobenzylidene)-1H-indene-1,3(2H)-dione is reported that affords a series of cyclopropane-fused tetrahydroquinolines. The salient features of this novel and practical transformation include high efficiency, transition-metal-free nature, operational simplicity, and outstanding functional group tolerance
Diastereoselective Synthesis of Tetracyclic Tetrahydroquinoline Derivative Enabled by Multicomponent Reaction of Isocyanide, Allenoate, and 2-Aminochalcone
作者:Zhishuang Wang、Youwen Fei、Chongrong Tang、Lei Cui、Jie Shen、Kun Yin、Shanya Lu、Jian Li
DOI:10.1021/acs.orglett.1c00912
日期:2021.6.4
We report here a multicomponent protocol to assemble several polycyclic dihydropyran-fused tetrahydroquinoline structures with excellent diastereoselectivity. This procedure employs simple feedstocks to accomplish a series of diverse structures, which is difficult to attain by traditional sequences.