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	1. Mechanism Study of Iron(Ⅲ)-Porphyrin Catalyzed Cycloproanation of Aromatic Alkene with Trifluoroethylamine Hydrochloride
	Xiao Jiang,Liu Qiang
	Chemistry 31 May 2020
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	Abstract:A substrate scopes of cyclopropanation has been expanded with trifluoroethylamine hydrochloride catalyzed by TPFPPFeCl under a user-friendly condition. Trifluoromethyl-substituted cyclopropanes were generated with high diastereoselectivity and yield, employing styrene derivatives and other heterocyclic alkene as substrates. Moreover, mechanism study shows TPFPP(NO) is the most important reaction intermediate which has not been reported in other metalloporphyrin-catalyzed cyclopropanation reactions.
	TO cite this article:Xiao Jiang,Liu Qiang. Mechanism Study of Iron(Ⅲ)-Porphyrin Catalyzed Cycloproanation of Aromatic Alkene with Trifluoroethylamine Hydrochloride[OL].[31 May 2020] http://en.paper.edu.cn/en_releasepaper/content/4752267


	2. Corrosion inhibition of the new quaternary ammonium salts derivative with 8-Hydroxyquinoline on copper in 0.5M H2SO4 solution
	Lei Zulei,TAN Bochuan,QIN Zhongjian,JIANG Lu,XIANG Bin
	Chemistry 02 May 2018
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	Abstract:In this study, four kinds of ionic liquids (ILs) with different carbon chain lengths based on 8-Hydroxyquinoline have been synthesized and used as the corrosion inhibitions for copper in 0.5 M sulfuric acid solution. The data of impedance spectroscopy, polarization curves and scanning electron microscope (SEM) show a positive correlation relationship between inhibitor concentration and inhibition efficiency. Besides, the introduction of alkyl groups in the molecular structure contributes to slow down the corrosion of copper, and inhibition efficiency rises firstly and then declines with the incremental alkyl chain length. The theoretical calculation result is consistent with the abovementioned experiments results. Furthermore, the adsorption of the investigated inhibitors on the copper surface obeys the Langmuir adsorption isotherm.
	TO cite this article:Lei Zulei,TAN Bochuan,QIN Zhongjian, et al. Corrosion inhibition of the new quaternary ammonium salts derivative with 8-Hydroxyquinoline on copper in 0.5M H2SO4 solution[OL].[ 2 May 2018] http://en.paper.edu.cn/en_releasepaper/content/4744754

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	3. Enantioselective Michael addition of 2,4-pentanedione To nitroalkenes catalyzed by dehydroabietylamine-cinchonine-squaramide
	PENG Xueke,ZHENG Jie,DONG Chune
	Chemistry 11 April 2018
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	Abstract:In this paper, on the basis of the special activity of natural rosin derivatives and the good asymmetric induction activity of squaramide organic catalysts, a novel dehydroabietylamine-cinchonine-squaramide catalyst has been developed for asymmetric Michael addition of 2,4-pentanedione to nitroalkenes. It found that with using 5 mol% dehydroabietylamine-cinchonine-squaramide catalyst , the reaction of 2,4-pentanedione to nitroalkenes could act effectively, and a series of nitroalkene derivatives possessing optical activity were afforded with high reaction yields and excellent enantioselectivities (up to 99% yield, 89% ee).
	TO cite this article:PENG Xueke,ZHENG Jie,DONG Chune. Enantioselective Michael addition of 2,4-pentanedione To nitroalkenes catalyzed by dehydroabietylamine-cinchonine-squaramide[OL].[11 April 2018] http://en.paper.edu.cn/en_releasepaper/content/4744456


	4. Synthesis and Antiproliferative Activity of Polymethoxychalcones Mannich Base Derivatives on Three Human Cancer Cells
	LI Cui,DONG Linpei,LI Xueli,WANG Qiu’an
	Chemistry 22 May 2017
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	Abstract:A series of seven new polymethoxychalcones Mannich base derivatives 2a-2g were synthesized from natural product 2'-hydroxy-3,4,5,4',6'-pentamethoxychalcone (1). Their antiproliferative activities were evaluated in vitro on a panel of three human cancer cell lines (Hela, HCC1954 and SK-OV-3) by CCK-8 assay. The results showed that all of the target compounds exhibited antiproliferative activities against the three human cancer cells with the IC50 values of 9.13-48.51 μM, except parent compound 1 on Hela cells. Some active compounds exhibited more potency as compared to positive control cis-Platin. Among them, compound 2b revealed to be the most active with IC50 values ranging from 9.13 to 11.24 μM against all the three cancer cell lines.
	TO cite this article:LI Cui,DONG Linpei,LI Xueli, et al. Synthesis and Antiproliferative Activity of Polymethoxychalcones Mannich Base Derivatives on Three Human Cancer Cells[OL].[22 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4735398


	5. Asymmetric Phase-Transfer-Catalyzed 1,6-Conjugate Addition of Thiols to in situ Generated para-Quinone Methides
	ZHOU Lei,FAN Yajing,LI Shen
	Chemistry 03 May 2017
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	Abstract:A catalytic asymmetric 1,6-conjugate addition of thiols to in situ generated para-quinone methides has been developed, affording a range of optically active benzyl thioethers in excellent yields and enantioselectivities. The use of para-hydroxybenzyl sulfones as precursors for the formation of transient p-QM intermediates allows to overcome the limitations in substrate scope.
	TO cite this article:ZHOU Lei,FAN Yajing,LI Shen. Asymmetric Phase-Transfer-Catalyzed 1,6-Conjugate Addition of Thiols to in situ Generated para-Quinone Methides[OL].[ 3 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4732205


	6. Semi-synthesis of Mangiferin-7-O-β-D-glucuronide
	YANG Bowei,LIANG Danlin,WEI Xiong,MENG Xiangbao,LI Zhongjun
	Chemistry 02 May 2017
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	Abstract:Mangiferin is a natural plant polyphenol with a structure of xanthone C-glycoside and it displays a wide spectrum of pharmacological activities. Investigation of the metabolites of mangiferin is valuable in studying on the mechanisms of its various pharmacological properties and developing novel drugs from the mangiferin derivatives. Among the metabolites of mangiferin, mangiferin-7-O-β-D-glucuronide has been reported as the phase II metabolite of mangiferin. Here we describe the first semi-synthesis of mangiferin-7-O-β-D-glucuronide with the natural product mangiferin as the starting material. In this work, we adopted several regioselective protection procedures to distinguish the different hydroxyl groups in the structure of mangiferin. And we accomplished the glycosylation under the phase-transfer catalysis conditions. In this method, we efficiently synthesized the glucuronide derivative of mangiferin in 10 steps with highly regioselective protection.
	TO cite this article:YANG Bowei,LIANG Danlin,WEI Xiong, et al. Semi-synthesis of Mangiferin-7-O-β-D-glucuronide[OL].[ 2 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4729417


	7. Synthesis of 9-methyl-2,4-nitro- 5-chloro acridine: an key intermediate for Plakinidines
	Dong Lichun,Xing Lan,Chen Sihong
	Chemistry 30 March 2017
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	Abstract:Plakinidines is a class of marine bioactive substances found in recent years, which have significant biological activity, such as inhibition of colon cancer cells, anti-leukemia and so on. It is of great significance to carry out its all synthetic work because of its potential application value. In this paper, a simple synthetic route was designed, and the intermediate intermediates of pramipride were successfully synthesized by using nitrobenzene, Ullmann coupling, Friedel-Crafts cyclization and rearrangement four-step reaction with m-dichlorobenzene as raw material 9-methyl-2,4-nitro-5-chloroacridine. The main influencing factors of each step reaction were discussed, and the product structure was confirmed by NMR, MS and other methods..
	TO cite this article:Dong Lichun,Xing Lan,Chen Sihong. Synthesis of 9-methyl-2,4-nitro- 5-chloro acridine: an key intermediate for Plakinidines[OL].[30 March 2017] http://en.paper.edu.cn/en_releasepaper/content/4723015


	8. The Synthesis of Novel Quinolinone Derivatives Containing 1,2,3-Triazole Unit Through Ultrasonic Irradiation Promoted 1,3-Dipolar Cycloaddition
	BI Wenzhu,MA Huili,LIU Shuyun,ZHU Shaohua,WEI Qiuren,CHEN Xiaolan,ZHAO Yufen
	Chemistry 18 November 2016
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	Abstract:An efficient ultrasonic irradiation promoted copper(I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition was used for the synthesis of quinolinone derivatives linked with 1,2,3-triazole moiety. The efficiency of 1,3-dipolar cycloaddition were notably promoted through the introduction of ultrasound irradiation. A wide variety of applicable quinolinone derivatives containing 1,2,3-triazole unit were synthesized at room temperature in high yields and their structures were elucidated by 1H NMR, 13C NMR, IR and HRMS.
	TO cite this article:BI Wenzhu,MA Huili,LIU Shuyun, et al. The Synthesis of Novel Quinolinone Derivatives Containing 1,2,3-Triazole Unit Through Ultrasonic Irradiation Promoted 1,3-Dipolar Cycloaddition[OL].[18 November 2016] http://en.paper.edu.cn/en_releasepaper/content/4710029


	9. Total Synthesis of Mangiferin, Homomangiferin, and Neomangiferin
	WEI Xiong,LIANG Danlin,WANG Qing,MENG Xiangbao,LI Zhongjun
	Chemistry 26 July 2016
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	Abstract:Total synthesis of mangiferin, homomangiferin, and neomangiferin, three C-glycosyl xanthone natural products with a wide spectrum of pharmacological effects, have been achieved starting from 2,3,4,6-tetra-O-benzyl-glucopyranose. The key steps involve a stereoselective Lewis acid promoted C-glycosylation of protected phloroglucinol with tetrabenzylglucopyranosyl acetate and a highly regioselective base-induced cyclization for the construction of the core xanthone skeleton.
	TO cite this article:WEI Xiong,LIANG Danlin,WANG Qing, et al. Total Synthesis of Mangiferin, Homomangiferin, and Neomangiferin[J].


	10. Aerobic Oxidative Approach to pyrrolo[1,2-a]quinoxalines
	LI Yun,WANG Chao,ZHAI Hongbin
	Chemistry 13 July 2016
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	Abstract:We have developed an environmentally benign and practical protocol for the synthesis of pyrrolo[1,2-a]quinoxalines, which represent ubiquitous structural units common to a number of biologically active compounds. This synthetic system features simple operation and using clean oxidant, as well as mild reaction conditions. Both aromatic and aliphatic aldehydes can be used for the reaction and the products were obtained in good to excellent yields.
	TO cite this article:LI Yun,WANG Chao,ZHAI Hongbin. Aerobic Oxidative Approach to pyrrolo[1,2-a]quinoxalines[J].

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