Expeditious Synthesis of Multisubstituted Quinolinone Derivatives Based on Ring Recombination Strategy
摘要:
We achieved a concise construction of 3-substituted quinolinone derivatives based on a ring recombination strategy. In this process, seven transformations involving two types of cyclization proceeded in one pot to afford various quinolinone derivatives in good to excellent chemical yields (up to 98%).
A chiral catalyst prepared from N,N′-dioxide and Co(BF4)2·6H2O was applied in the asymmetric hydride transfer initiated cyclization reaction, giving optically active tetrahydroquinolines in good yields with high enantioselectivities under mild reaction conditions. Meanwhile, in light of the absolute configuration of the product, a possible working model was proposed to explain the origin of the activation
Expeditious Synthesis of Multisubstituted Quinolinone Derivatives Based on Ring Recombination Strategy
作者:Kazuma Yokoo、Keiji Mori
DOI:10.1021/acs.orglett.9b04224
日期:2020.1.3
We achieved a concise construction of 3-substituted quinolinone derivatives based on a ring recombination strategy. In this process, seven transformations involving two types of cyclization proceeded in one pot to afford various quinolinone derivatives in good to excellent chemical yields (up to 98%).