Synthesis of Polysubstituted Quinolines from α-2-Aminoaryl Alcohols Via Nickel-Catalyzed Dehydrogenative Coupling
作者:Sanju Das、Debabrata Maiti、Suman De Sarkar
DOI:10.1021/acs.joc.7b03198
日期:2018.2.16
This study reports a nickel-catalyzed sustainable synthesis of polysubstitutedquinolines from α-2-aminoaryl alcohols by a sequential dehydrogenation and condensation process that offers the advantages of a low catalyst loading and wide substrate scope. In contrast to earlier reported methods, this strategy allows the use of both primary as well as secondary α-2-aminoaryl alcohols in combination with
An Efficient Synthesis of Substituted Quinolines via Indium(III) Chloride Catalyzed Reaction of Imines with Alkynes
作者:Mei Zhu、Weijun Fu、Chen Xun、Guanglong Zou
DOI:10.5012/bkcs.2012.33.1.43
日期:2012.1.20
synthetic method for the preparation of quinolines through indium(III) chloride-catalyzed tandem addition-cyclization-oxidation reactions of imines with alkynes was developed. The processes can provide a diverse range of quinoline derivatives in good yields from simple imines and alkynes.
Synthesis of multi-functionalized quinolines and 1,2-dihydroquinolines through FeCl<sub>3</sub>
-mediated reactions of carbonyl compounds with 2-vinylanilines
作者:Sha Liu、Gaoqiang Li、Feng Xu
DOI:10.1002/jccs.201800001
日期:2018.7
A facile and efficient approach toward the synthesis of functionalized quinolines and 1,2‐dihydroquinolines from carbonylcompounds and 2‐vinylanilines is described. The protocol utilizes the nonhazardous and less expensive FeCl3 as catalyst with wide functional group tolerance and avoiding heavy metal impurities in the products.
A Tf
<sub>2</sub>
O‐Promoted Synthesis of Functionalized Quinolines from Ketoximes and Alkynes
作者:Weiping Zheng、Weiguang Yang、Dongping Luo、Lin Min、Xinyan Wang、Yuefei Hu
DOI:10.1002/adsc.201801724
日期:2019.4.23
A new general synthesis of quinolines was developed from ketoximes and alkynes in the presence of Tf2O. It offered the first direct synthesis of quinolines by using the nitrilium salts generated in situ from a Tf2O‐promoted Beckmann rearrangement of ketoximes under very easy conditions.
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.