Synthesis of glucosylated 1,2,3-triazole derivatives
摘要:
A series of potential bioactive compounds, l-glucosyl-4-heterocyclyl-5-(p-substituted-phenyl)-1,2,3-triazoles, were synthesized. Highly stereoselective products were obtained in good yield. Primary activity screening showed that this type of N-glucosylic compound possessed antitumour and antiviral activities. (C) 1999 Elsevier Science Ltd. All rights reserved.
Environmentally friendly approach to convergent synthesis of highly functionalized indanone fused multicyclic pyrrolines
作者:Xi-Min Liu、Xin-Rong Lin、Sheng-Jiao Yan、Mei-Yang Peng、Rong Huang、Jun Lin
DOI:10.1016/j.tet.2016.07.006
日期:2016.9
A facile synthesis of highly functionized indanone fused multicyclic pyrrolines using the heterocyclic ketene aminal and ninhydrin is described. Derivative alkoxyl or amine substituted analogues were also directly achieved upon adding alcohols or amines as corresponding starting materials. The reaction conditions are environment friendly and have a good tolerance towards a variety of heterocyclic ketene
Synthesis of novel tetracyclo-isocoumarins via AcOH-catalyzed cascade reaction of heterocyclic ketene aminals with 2,2-dihydroxy-2H-indene-1,3-dione
作者:Sheng-jiao Yan、Yu-lan Chen、Lin Liu、Ya-juan Tang、Jun Lin
DOI:10.1016/j.tetlet.2010.11.100
日期:2011.1
A facile synthesis of tetracyclo-isocoumarins based on the AcOH-catalyzed cyclocondensation and rearrangement reaction between heterocyclicketeneaminals and 2,2-dihydroxy-2H-indene-1,3-dione is described. This method provides direct access to tetacyclo-isocoumarins, a class of compounds with potential broad spectrum biological activities.
Enantioselective Epoxypyrrolidines via a Tandem Cycloaddition/Autoxidation in Air and Mechanistic Studies
作者:Kaixiu Luo、Yongqiang Zhao、Jiawei Zhang、Jia He、Rong Huang、Shengjiao Yan、Jun Lin、Yi Jin
DOI:10.1021/acs.orglett.8b03605
日期:2019.1.18
A tandem cycloaddition/autoxidation reaction between heterocyclic ketene aminals and diazoester in air is described for the enantioselective preparation of epoxypyrrolidines. Notably, the results of mechanistic studies suggest that epoxide was oxidized from an sp3 C–C single bond, which is of mechanistic and practical interest as this protocol may be suitable for constructing other bioactive heterocyclic
Substrate-Tuned Domino Annulation for Selective Synthesis of Poly-substituted Benzo[<i>f</i>]imidazo[2,1-<i>a</i>][2,7]naphthyridines and 3-Azaheterocyclic Substituted 2-Arylquinolines
developed for the selective synthesis of poly-substituted benzo[f]imidazo[2,1-a][2,7]naphthyridines and 3-azaheterocyclic substituted 2-arylquinolines. These reactions proceed well under mild conditions without any additives. Plausible mechanisms for such a polycyclic ringsystem assembly were also proposed. Moreover, benzo[f]imidazo[2,1-a][2,7]naphthyridine 3g displayed a fluorescence effect, demonstrating
杂环烯酮缩醛(HKA)和2-氨基查尔酮的多米诺环化/氧化已开发用于选择性合成多取代的苯并[ f ]咪唑并[ 2,1- a ] [2,7]萘啶和3-氮杂环杂环取代基2-芳基喹啉。这些反应在温和条件下进行得很好,没有任何添加剂。还提出了这种多环系统组装的合理机制。此外,苯并[ f ]咪唑并[2,1- a ] [2,7]萘啶3g显示出荧光效应,证明了在有机光学材料中的潜在应用。
A Convenient Synthesis of 3,7′-Bisindole Derivatives
作者:Teng Liu、Hong-You Zhu、Da-Yun Luo、Sheng-Jiao Yan、Jun Lin
DOI:10.3390/molecules21050638
日期:——
An efficient and convenient method to synthesize highly functionalized 3,7'-bisindole derivatives has been developed via a Michael addition and cyclic condensation reaction of heterocyclic ketene aminals (HKAs) with 2-(1H-indol-3-yl)cyclohexa-2,5-diene-1,4-dione derivatives in ethanol-based solvents at room temperature. This strategy provides an efficient, environmentally friendly approach for easy