Visible-Light-Induced Photocatalytic Aerobic Oxidative C<sub>sp3</sub>–H Functionalization of Glycine Derivatives: Synthesis of Substituted Quinolines
作者:Xiaorong Yang、Liqi Li、Ying Li、Yuan Zhang
DOI:10.1021/acs.joc.6b02683
日期:2016.12.16
with unactivated alkenes has been accomplished. This visible light-driven protocol has been successfully applied to a broad scope of glycine esters and simple alkenes, giving rise to diverse substitutedquinoline derivatives in 18–84% yield under mild (at room temperature under air atmosphere) and operationally simple reaction conditions.
A one-step synthesis of 4-arylquinoline-2-carboxylates along with their antiprotozoal activity against the pathogenic parasite Toxoplasma gondii is reported. Mechanistic insights into the role of Lewis acid (silver triflate) versus Bronsted acid (triflic acid) catalysis are revealed clarifying aspects of the mechanism of the quinoline synthesis.
Synthesis, and the antioxidant, neuroprotective and P-glycoprotein induction activity of 4-arylquinoline-2-carboxylates
作者:Jaideep B. Bharate、Abubakar Wani、Sadhana Sharma、Shahi Imam Reja、Manoj Kumar、Ram A. Vishwakarma、Ajay Kumar、Sandip B. Bharate
DOI:10.1039/c4ob00488d
日期:——
An efficient synthesis of 4-arylquinoline-2-carboxylates and their antioxidant, neuroprotective and P-glycoprotein induction activity have been described.
The unprecedented title reaction between glycinederivatives and indoles, as well as the auto‐oxidative Povarov/aromatization tandem reaction of glycinederivatives with olefins are described. The reactions were performed in the absence of redox‐active catalysts and chemical oxidants under mild reaction conditions. Only simple organic solvents and air (or O2) were required.
Visible-light-enabled aerobic oxidative C<sub>sp3</sub>–H functionalization of glycine derivatives using an organic photocatalyst: access to substituted quinoline-2-carboxylates
A practical visible-light-induced aerobic oxidative dehydrogenative coupling reaction of glycine derivatives with olefins has been developed to efficiently synthesize quinoline-2-carboxylates. This metal-free process proceeds smoothly under mild conditions and exhibits good tolerance of functional groups. Given the low cost of the catalyst and feedstock materials, the mild reaction conditions and the