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-KETOESTERS: 作品数：12被引量：9H指数：2; 导出分析报告; 相关领域：理学更多>>; 相关作者：孟令国陈龙更多>>; 相关机构：淮北师范大学中国科学技术大学安徽工业大学华东理工大学更多>>; 相关期刊：《Science China Chemistry》《Green Synthesis and Catalysis》《Chinese Journal of Chemistry》《Chinese Chemical Letters》更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划更多>>

New chiral N-heterocyclic olefin bifunctional organocatalysis inα-functionalization ofβ-ketoesters: 《Science China Chemistry》2023年第1期147-154,共8页Sijing Wang Cefei Zhang Da Li Yuqiao Zhou Zhishan Su Xiaoming Feng Shunxi Dong; supported by the National Natural Science Foundation of China(92056107,22271199,21801175);the Sichuan University(2020SCUNL204)。; N-heterocyclic olefins(NHOs)possess an electron-rich and highly polarized C=C double bond due to the donating property of nitrogen atoms.This feature imparts exocyclic carbon atom of NHOs with strong basicity and high...; 关键词：ORGANOCATALYST N-heterocyclic olefin asymmetric synthesis amination trifluoromethylthiolation

Lewis acid-catalyzed[4+2]cycloaddition of 3-alkyl-2-vinylindoles withβ,γ-unsaturatedα-ketoesters: 《Green Synthesis and Catalysis》2022年第1期84-88,共5页Yuwen Sun Zhaoshan Wang Shufang Wu Yuchen Zhang Feng Shi; This work was supported by National Natural Science Foundation of China(No.21772069);Natural Science Foundation of Jiangsu Province(No.BK20201018);Undergraduate Students Project of Jiangsu Province(No.202010320050Z);High-level Innovative and Entrepreneurial Talents Introduction Plan of Jiangsu Province,and Natural Science Foundation of JSNU(No.19XSRX010).; A Lewis acid-catalyzed[4+2]cycloaddition of 3-alkyl-2-vinylindoles withβ,γ-unsaturatedα-ketoesters has been established in the presence of Sc(OTf)3,which afforded a series of indole-containing pyran derivatives in ...; 关键词：Lewis acid catalysis [4+2]Cycloaddition 3-Alkyl-2-vinylindole β γ-Unsaturatedα-ketoester Indole-containing pyran

Radical coupling of β-ketoesters and amides promoted by Brønsted/ Lewis acids: 《Green Synthesis and Catalysis》2020年第1期70-74,共5页Joshua L.Zhu Stephen W.Laws Michael J.Rourke Karl A.Scheidt; We thank Northwestern University and the National Institute of General Medical Sciences(Nos.R01 GM131431 and R35 GM136440)for support of this work.; Recent advances in photocatalysis have enabled radical methods with complementary chemoselectivity to established two electron bond forming approaches.While this radical strategy has previously been limited to substra...; 关键词：PHOTOCHEMISTRY Lewis acid Catalysis ALKYLATION RADICALS

Nickel(II)-Catalyzed Diastereo- and Enantioselective [3+2] Cycloaddition of a-Ketoesters with 2-Nitrovinylindoles and 2-Nitrovinylpyrroles被引量：4: 《Chinese Journal of Chemistry》2019年第3期216-220,共5页Wu-Lin Yang Zhong-Tao Sun Hao Sun Wei-Ping Deng; Summary of main observation and conclusion The catalytic asymmetric [3+2] cycloaddition of a-ketoesters w让h 2-nitrovinylindoles and 2-nitrovinylpyrroles has been established. This strategy allowed the construction of...; 关键词：CATALYTIC ASYMMETRIC ENANTIOSELECTIVE

Pentafluoroethylbenziodoxole （BIX-C2Fs）： A Shelf-Stable Reagent for Pentafluoroethylation of β-Ketoesters and Arylboronic Acids被引量：1: 《Chinese Journal of Chemistry》2016年第7期662-668,共7页Jiansheng Zhu Yuguang Li Chuanfa Ni Qilong Shen; National Basic Research Program of China （No. 2012CB821600）, National Natural Science Foundation of China （Nos. 21372247, 21572258, 21421002） and SIOC.; An improved method for the preparation of pentafluoroethylating reagent pentafluoroethyl-substituted benzio- doxole （BIX-C2Fs） was described. Under mild conditions, BIX-C2F5 was able to react with β-ketoesters or a...; 关键词：fluorine pentafluoroethyl HYPERVALENT ELECTROPHILIC CROSS-COUPLING

Metal-free one-pot synthesis of quinoline-2,4-carboxylates via a molecular iodine-catalyzed three-component reaction of arylamines, ethyl glyoxylate, and α-ketoesters被引量：2: 《Chinese Chemical Letters》2015年第10期1289-1292,共4页Guang-Ming Nan Wei Liu; supported by the Opening Project of Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous Region (No. 2014YSHXZD01); A simple and metal-free method has been developed for the construction of quinoline-2,4-carboxylates under mild conditions via a molecular iodine-catalyzed three-component tandem reaction of arylamines, ethyl glyoxyla...; 关键词：Molecular iodine Quinoline-2 4-carboxylates Three-component Tandem reaction

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

Chiral Sulfinamide-Olefin Ligands： Switchable Selectivity in Rhodium-Catalyzed Asymmetric 1,2-Addition of Arylboronic Acids to Aliphatic α-Ketoesters: 《Chinese Journal of Chemistry》2013年第3期321-328,共8页Ting-Shun Zhu Ming-Hua Xu; Financial support from the National Natural Science Foundation of China; Simple and readily available chiral N-（sulfinyl）allylamines have been developed as efficient novel ligands for the rhodium-catalyzed enantioselective 1,2-addition of arylboronic acids to challenging aliphatic a-keto...; 关键词：asymmetric catalysis rhodium sulfur-o｜efin ligand 1 2-addition stereoselectivity reversal

Melamine-formaldehyde resin supported H^+:A mild and inexpensive reagent for synthesis of coumarins under mild conditions: 《Chinese Chemical Letters》2011年第11期1313-1316,共4页Ramin Rezaei Leila Dorosty Maryam Rajabzadeh Reza Khalifeh; Melamine-formaldehyde resin supported H~＋ is used as an efficient catalyst in the Pechmann condensation reaction of phenols withβ-ketoesters,in solvent-free media leading to the formation of coumarin derivatives usi...; 关键词：COUMARINS PHENOLS β-Ketoesters Melamine-formaldehyde resin Pechmann condensation SOLVENT-FREE

Mechanism of Gold（I）-Catalyzed Conia-ene Reaction of β-Ketoesters with Alkynes： A DFT Study: 《Chinese Journal of Chemistry》2011年第11期2320-2326,共7页尹艳春王勉王坚毅周龙昌段文贵; Density functional calculations have been performed to comparatively investigate two possible pathways of Au（I）-catalyzed Conia-ene reaction of β-ketoesters with alkynes. Our studies find that, under the assistance...; 关键词：Au（I） catalyst ISOMERIZATION ALKYNE Conia-ene reaction density functional calculation

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