CHROMENES

作品数：19被引量：11H指数：2
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Cascade reaction of 3-formylchromones:Highly selective synthesis of 4-oxo-3-(1H-pyrrol-3-yl)-4H-chromenes
《Green Synthesis and Catalysis》2024年第2期94-101,共8页Ying Lv Li Chen Xinghan Yun Kun Li Shengjiao Yan 
the Natural Science Foundation of Yunnan Province(No.2019FY003003);the National Natural Science Foundation of China(No.21662042);the Scientific and Technological Innovation Team of Green Synthesis and Activity Research of Natural-like Heterocyclic Compound Libraries in Universities of Yunnan Province(No.C17624011121).
A novel method for the preparation of highly functionalized 4-oxo-3-(1H-pyrrol-3-yl)-4H-chromenes(OPCMs)from 3-formylchromones andα-isocyanoacetates via an unprecedented three-component[1+1+3]cycloaddition reaction i...
关键词：4-Oxo-3-(1H-pyrrol-3-yl)-4H-chromenes THREE-COMPONENT Cascade reaction [1+1+3]cycloaddition 3-Formylchromones 
A Lewis acid-catalyzed tandem reaction enabling 2-arylglycerol derivative as a versatile 1,3-biselectrophile for the synthesis of 4H-chromenes and 2-pyridinones
《Chinese Chemical Letters》2023年第9期147-150,共4页Shaomin Chen Tianjian Zhang Zhenhua Xu Bo You Minghao Li Yanlong Gu 
The National Key Research and Development Project(No.2022YFE0124100);Ordos Key Research and Development Project(No.2022EEDSKJZDZX003);National Natural Science Foundation of China(Nos.21872060,21902054,21761132014,and 22072049);the Open Research Fund(No.2022JYBKF01)of Key Laboratory of Material Chemistry for Energy Conversion and Storage(HUST),Ministry of Education,are acknowledged for the financial support;Program for HUST Academic Frontier Youth Team(No.2019QYTD06)is also acknowledged;supported by The Innovation and Talent Recruitment Base of New Energy Chemistry and Device。
Acid-catalyzed tandem reactions were established by employing a novel class of 2-arylglycerol derivative,5-aryl-1,3-dioxan-5-ol,as versatile 1,3-biselectrophile.In the reactions,5-aryl-1,3-dioxan-5-ol works like atrop...
关键词：Lewis acid catalysis 2-Arylglycerol derivative 1 3-Biselectrophile Six-membered heterocycles [3+3]cyclization 
Synthesis of 2-trifluoromethyl chromenes via double carbonyl-ene reaction
《Organic Chemistry Frontiers》2022年第3期752-756,共5页Shouxiong Chen Hui Wang Qi Lin Zhiqiang Weng 
This work was supported by the National Natural Science Foundation of China(21772022),Minjiang University,and Fuzhou University.
A new protocol for the synthesis of diversely substituted 2-trifluoromethyl chromenes from the cyclization reaction of o-isopropenylphenols with trifluoroacetic anhydride has been developed,which proceeds via sequenti...
关键词：REACTION CARBONYL DOUBLE 
In vitro Pharmacological Activity of Chromenes in Disk of Helianthus annuus
《Medicinal Plant》2021年第3期50-54,共5页Zhiying WEI Li LI Yaohua LI Zhenzhen PAN Fangchan LI Yupin CAO Jiagang DENG Xiaojiao PAN 
Natural Science Foundation of Guangxi(General Program No.2020GXNSFAA238033);Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues(CICAR2019-P4);Guangxi Key Laboratory of Pharmacodynamics Research of Traditional Chinese Medicine(19-050-39);Key Laboratory of Chinese Medicine Extraction,Purification and Quality Analysis in Guangxi Universities(Gui Jiao Ke Yan[2014]6).
[Objectives]The anti-tumor,anti-bacterial,anti-acetylcholinesterase and anti-α-glucosidase activity in vitro of five chromenes isolated from Helianthus annuus disk was studied,in order to provide reference for the de...
关键词：Helianthus annuus disk CHROMENE Pharmacological activity ACETYLCHOLINESTERASE Α-GLUCOSIDASE 
Synthesis of 4H-chromenes by silver(Ⅰ)-catalyzed cycloaddition of ortho-quinone methides with N-allenamides
《Science China Chemistry》2019年第1期80-86,共7页Long Kong Nuligonda Thirupathi Jiong Jia Zhenghu Xu 
supported by the National Natural Science Foundation of China(21572118,21750110444);the Natural Science Foundation of Shandong Province(ZR2018MB010);subject construction funds(104.205.2.5);Tang scholar award of Shandong University
Chromenes represent an important class of six-membered heterocycles and have drawn tremendous attention in recent years. In this article, we report a convenient and practical synthesis of this heterocycle by a silver(...
关键词：4H-chromene ortho-quinone methide N-allenamide silver-catalysis CYCLOADDITION 
Catalytic Asymmetric Cross-Dehydrogenative Coupling of 2H-Chromenes and Aldehydes
《Chinese Journal of Chemistry》2018年第12期1187-1190,共4页Xinhui Pan Xigong Liu Shutao Sun Zhilin Meng Lei Liu 
the National Natural Science Foundation of China (Nos.21722204,21472112);the Fok Ying Tung Education Foundation (No.151035)for support.
Organocatalytic cascade 1,6-conjugate addition/annulation/tautomerization of functionalized para-quinone methides： Access to chiral 2-amino-4-aryl-4H-chromenes
《Chinese Chemical Letters》2018年第8期1273-1276,共4页Cong Duan Ling Ye Wenqin Xu Xinying Li Feng Chen Zhigang Zhao Xuefeng Li 
financially supported by the National Natural Science Foundation of China(No.21402163);the Fundamental Research Funds for the Central Universities of Southwest Minzu University (No. 2016NGJPY02);the Graduate Innovation Project of Southwest Minzu University (No. CX2017SZ016);the Undergraduate Innovation Project of Southwest Minzu University (No. S201610656092)
A novel organocatalytic cascade process initiated by 1,6-conjugated addition has been successfully developed. A range of pharmaceutically active 2-amino-4-aryl-4H-chromenes were readily obtained in high yields（88%-99...
关键词：para-Quinone methides 2-Amino-4-aryl-4H-chromene Domino reaction 1 6-Conjugated addition Enantioselective 
Enantioselective organocatalytic synthesis of the chiral chromenes by domino oxa-Michael-aldol reaction
《Chinese Chemical Letters》2018年第6期942-944,共3页Shrikant S.Pendalwar Avinash V.Chakrawar Sudhakar R.Bhusare 
The proline based chiral organocatalyst has been found to be an efficient catalyst for the facile synthesis of substituted 2-aryl-2 H-chromenes-3-carbaldehyde. We envisioned that the iminium interaction between chiral...
关键词：Asymmetric synthesis L-PROLINE ORGANOCATALYST 2-Aryl-2H-chromenes-3-carbaldehyde 
Bi(OTf)3-catalyzed tandem reaction of naphthols with β,γ-unsaturated a-ketoesters.Efficient synthesis of functionalized 4H-chromenes
《Chinese Chemical Letters》2014年第9期1235-1239,共5页Hui-Jing Li Dong-Hui Luo Qin-Xi Wu Chun-Yang Dai Zhi-Lun Shen Yan-Chao Wu 
supported by the Science and Technology Development Project of Weihai (Nos.2011DXGJ13,2012DXGJ02);the Natural Science Foundation of Shandong Province (No.ZR2012BM002);the National Natural Science Foundation of China (Nos.21202028,21372054)
An efficient synthesis of functionalized 4H-chromenes by the tandem reaction of β,γ-unsaturated α- ketoesters with 2-naphthols, 1 -naphthols, and 1,3-dihydroxynaphthalenes has been accomplished with high selectivit...
关键词：Bismuth triflate 4H-Chromenes Tandem reaction Selective synthesis 
Silica-Grafted Ionic Liquids as Recyclable Catalysts for the Synthesis of 3,4-Dihydropyrano[c]chromenes and Pyra-no[2,3-c]pyrazoles被引量：1
《Green and Sustainable Chemistry》2013年第2期1-8,共8页Khodabakhsh Niknam Abolhassan Piran 
Silica-grafted N-propyl-imidazolium hydrogen sulfate ([Sipim]HSO4) is employed as a recyclable heterogeneous ionic liquid catalyst for the synthesis of 3,4-dihydropyrano[c]-chromenes by the reaction of aromatic aldehy...
关键词：Silica-Grafted N-Propyl-Imidazolium Hydrogen Sulfate Aldehydes Pyrano[2 3-c]-Pyrazoles 3 4-Dihydropyrano[c]-Chromenes Solvent-Free Heterogeneous Ionic Liquid Catalysts 
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