Synthesis of 2-(2-Naphthyl)quinolines from Z-3-(2-Naphthyl)-3-chloro-2-propenal
摘要:
By reaction of Z-3-(2-naphthyl)-3-chloro-2-propenal and aromatic amines 1-(2-naphthyl)-3-iminoaryl-1-propenylarylamines were prepared which at heating in the glacial acetic acid afforded the corresponding 2-(2-naphthyl)quinolines.
Base-Promoted Intermolecular Cyclization of Substituted 3-Aryl(Heteroaryl)-3-chloroacrylaldehydes and Tetrahydroisoquinolines: An Approach to Access Pyrrolo[2,1-<i>a</i>]isoquinolines
作者:Ziqi Yang、Ning Lu、Zhonglin Wei、Jungang Cao、Dapeng Liang、Haifeng Duan、Yingjie Lin
DOI:10.1021/acs.joc.6b01781
日期:2016.12.2
We have developed a new base-promoted intermolecular cascade cyclization reaction of substituted 3-aryl(heteroaryl)-3-chloroacrylaldehydes and tetrahydroisoquinolines in one pot. The reaction provides a facile and practical synthesis of pyrrolo[2,1-a]isoquinolines. A number of pyrrolo[2,1-a]isoquinolines were synthesized in moderate to high yields (up to 97%).
我们已经开发了一种新的碱促进的在一锅中取代的3-芳基(杂芳基)-3-氯丙烯醛和四氢异喹啉的分子间级联环化反应。该反应提供了吡咯并[2,1- a ]异喹啉的简便实用的合成方法。合成了许多吡咯并[2,1- a ]异喹啉,中度至高产率(高达97%)。
Stereoselective One-Pot Sequential Dehydrochlorination/<i>trans</i>
-Hydrofluorination Reaction of β-Chloro-α,β-unsaturated Aldehydes or Ketones: Facile Access to (<i>Z</i>
)-β-Fluoro-β-arylenals/β-Fluoro-β-arylenones
作者:Jingli Zhang、Liran Liu、Junxin Duan、Lianghu Gu、Bifeng Chen、Taolei Sun、Yuefa Gong
DOI:10.1002/adsc.201700981
日期:2017.12.19
high potential as a fluorinated synthon in organic synthesis. However, control of the Z/E stereoselectivity of multi‐substituted monofluoroalkene products in one‐pot reactions still remains a challenge. An unprecedented one‐pot approach for the highly regio‐ and stereoselective preparation of functionalized (Z)‐β‐monofluoro tri‐substituted alkenesfrom readily available β‐chloro‐α,β‐unsaturated aldehydes
Synthesis of azirines containing aldehyde functionality and their utilization as synthetic tools for five membered oxazoles and isoxazoles
作者:Sulagna Brahma、Jayanta K. Ray
DOI:10.1002/jhet.5570450203
日期:2008.3
A simple and useful procedure for the synthesis of azirinescontainingaldehydefunctionality from open chain bromo/chloro-aldehydes at room temperature is reported. The scope of the ring expansion reaction of a number of 3-substituted-2-formyl-azirines has been examined using different oraganometallic catalysts and a variety of Lewis acids.
Uncommon Heterocyclization into a Pyrazole System of Z-3-(2-Naphthyl)-3-chloro-2-propenal Semicarbazone and Thiosemicarbazone
作者:E. V. Vashkevich、V. I. Potkin、N. G. Kozlov
DOI:10.1007/s11178-005-0235-6
日期:2005.5
By reaction of Z-3-(2-naphthyl)-3-chloro-2-propenal with semicarbazide hydrochloride and thiosemicarbazide the corresponding semicarbazone and thiosemicarbazone were obtained that underwent a heterocyclization into a pyrazole system with elimination of amide moieties and with migration of the naphthyl fragment into the position 4 of the pyrazole ring. The alkylation of 4-(2-naphthyl)pyrazole synthesized with 2-nitropentachloro-1,3-butadiene afforded 1,1-bis[4-(2-naphthyl)-pyrazol-1-yl]-2-nitrotrichloro-1,3-butadiene.
Synthesis and Properties of Copper, Mercury, and Silver (2-Naphthyl)acetylenides
作者:E. A. Dikusar、V. I. Potkin、E. V. Vashkevich、N. G. Kozlov、R. V. Kaberdin
DOI:10.1023/b:rugc.0000031860.91216.62
日期:2004.4
(Z)-2-Naphthylacetylene was synthesized by the reaction of (Z)-3-(2-naphthyl)-3-chloropropenal (prepared from 2-acetylnaphthalene) with aqueous NaOH in dioxane. The reactions of 2-naphthylacetylene with CuCl, [Ag(NH3)(2)]NO3, and K-2[HgI4] gave copper, silver, and mercury 2-naphthylacetylenides, respectively. Silver naphthylacetylenide reacts with iodine to give the iodoethynyl derivative, which readily takes up bromine across the triple bond.