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.
Catalyst-free cascade reaction of heterocyclic ketene aminals with N-substituted maleimide to synthesise bicyclic pyrrolidinone derivatives
作者:Jin Liu、Hai-Rui Zhang、Xin-Rong Lin、Sheng-Jiao Yan、Jun Lin
DOI:10.1039/c4ra03863k
日期:——
An efficient synthesis of highly substituted bicyclic pyrrolidinone derivatives via a cascadereaction of heterocyclic ketene aminals (HKAs) and N-substituted maleimide in an environmentally friendly medium under catalyst-free conditions is described. This protocol uses group-assisted purification (GAP) chemistry in which purification via chromatography and recrystallization can be avoided, and the
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
Three-component domino reaction synthesis of highly functionalized bicyclic pyrrole derivatives
作者:Xue-Bing Chen、Xiao-Ying Wang、Dan-Dan Zhu、Sheng-Jiao Yan、Jun Lin
DOI:10.1016/j.tet.2013.12.062
日期:2014.2
synthesis of highly functionalized bicyclic pyrrole derivatives by a three-componentdominoreaction of heterocyclic ketene aminals (HKAs), arylglyoxal monohydrate, and indoles in ethanol medium catalyzed by acetic acid is described. In this procedure, three sigma bonds were formed simultaneously. The present synthesis features excellent regio-selectivity, easy purification as well as simple starting materials