An efficient heterogeneous gold(I)-catalyzed intermolecular cycloaddition of 2-aminoaryl carbonyls and internal alkynes leading to polyfunctionalized quinolines
作者:Wenli Hu、Weisen Yang、Tao Yan、Mingzhong Cai
DOI:10.1080/00397911.2019.1567788
日期:2019.3.19
first heterogeneous intermolecular cycloaddition of 2-aminoaryl carbonyls and internal alkynes was realized in DMF at 100 °C by using a triphenylphosphine-functionalized MCM-41-supported gold(I) complex [MCM-41-PPh3-AuCl] and AgOTf as catalysts, yielding a variety of polyfunctionalized quinolines in good to excellent yields. This heterogeneous gold(I) complex could easily be prepared via a simple two-step
An efficient, convenient, and eco-friendly biocatalytic approach was developed for the synthesis of quinoline derivatives via the α-chymotrypsin-catalyzed Friedländer reaction. Interestingly, α-chymotrypsin exhibited higher catalytic activity in an ionicliquid (IL) aqueous solution as compared to that observed in our previous relevant study, which was conducted using an organic solvent, and a series
Visible-light-induced radical cascade acylation/cyclization/aromatization of N-propargyl aromatic amines and acyl oxime esters for the construction of 3-acylated quinolines is developed. This approach uses acyl oxime esters as the precursor of acyl radicals as well as acylation reagents, Eosin Y as the photocatalyst, and acetonitrile as the solvent, providing a convenient route toward 3-acylated quinolines
开发了用于构建 3-酰化喹啉的N-炔丙基芳胺和酰基肟酯的可见光诱导自由基级联酰化/环化/芳构化。该方法使用酰基肟酯作为酰基自由基的前体以及酰化试剂,曙红 Y 作为光催化剂,乙腈作为溶剂,为通过酰基肟酯的 C-C 键断裂获得 3-酰化喹啉提供了一条便捷的途径.
Green Approach for the Efficient Synthesis of Quinolines Promoted by Citric Acid
作者:Srinivas R. Adapa、Ramu Enugala、Sreelatha Nuvvula、Vijay Kotra、Ravi Varala、Srinivas R. Adapa
DOI:10.3987/com-08-11405
日期:——
On the Reaction of<i>N</i>-Arylnitrilium Salts with Acetylenes: Synthesis of Substituted Quinolines
作者:Mahmoud Al-Talib、Johannes C. Jochims、Quanrui Wang、Atef Hamed、Abd El-Hamid Ismail
DOI:10.1055/s-1992-26250
日期:——
Quinolinium salts 3 are obtained from the reaction of N-arylnitrilium salts 1 with acetylenes 2. With aqueous base the salts 3 are transformed into the corresponding quinolines 4.