Mingjie Zhang

Name: 张明杰

Organization: Tianjin University , China

Department: Department of Chemistry

Title: Professor(PhD)

Chemicals
References

Synthesis and color properties of novel polymeric dyes based on grafting of anthraquinone derivatives onto O-carboxymethyl chitosan

Co-reporter:Dongjun Lv;Jin Cui;Yufang Wang;Guohua Zhu;Xiujing Li

RSC Advances (2011-Present) 2017 vol. 7(Issue 53) pp:33494-33501

Publication Date(Web):2017/06/29

DOI:10.1039/C7RA04024E

Four polymeric dyes were prepared by grafting brominated anthraquinone derivatives onto O-carboxymethyl chitosan through Ullmann condensation. The chemical structure of the prepared polymeric dyes was determined by Fourier transform infrared spectroscopy (FT-IR), elemental analysis and differential scanning calorimetry (DSC), and the results showed that the anthraquinone derivatives were successfully grafted onto O-carboxymethyl chitosan. The grafting degrees of the four polymeric dyes were 0.66, 1.14, 0.93 and 1.01 mmol g−1 respectively. The color performance of brominated anthraquinone derivatives and prepared polymeric dyes was determined and compared using digital photographs and UV-Vis adsorption spectra, and it was found that the electronic properties and planarity of the substituent group in the anthraquinone derivatives obviously affected the adsorption wavelength of the prepared polymeric dyes. In addition, the polymeric dyes with an electron donating group and higher planarity showed longer adsorption wavelengths and more deep color. The cytotoxicity of prepared polymeric dyes was tested, and their IC50 values on human liver cell lines LO2 were 7.666, 8.557, 8.186 and 8.934 g L−1 respectively, suggesting low cytotoxicity of the prepared polymeric dyes.

Grafting of edible colorants onto O-carboxymethyl chitosan: preparation, characterization and anti-reduction property evaluation

Co-reporter:Dongjun Lv, Mingjie Zhang, Jin Cui, Juanjuan Lu and Weixue Li

New Journal of Chemistry 2016 vol. 40(Issue 4) pp:3363-3369

Publication Date(Web):10 Feb 2016

DOI:10.1039/C6NJ00241B

Two polymer dyes were prepared by grafting two edible colorants, Sunset Yellow and Allura Red, onto O-carboxymethyl chitosan through a chlorosulfonylation reaction in a SOCl2/N,N-dimethylformamide chlorination system and a grafting reaction in a mixed solvent system of water and tetrahydrofuran (Schotten–Baumann reaction). The analysis results from Fourier transform-infrared spectroscopy, 1H-NMR spectroscopy, mass spectrometry, differential scanning calorimetry and gel permeation chromatography showed that the edible colorants were successfully grafted onto the O-carboxymethyl chitosan. The grafting degrees were determined by UV-vis absorption spectroscopy and elemental analysis, and the analysis results showed that the highest values the two edible colorants could reach were 29.1% and 33.3%, respectively, by the adjustment of the reaction pH, time, temperature and mass ratio of the edible colorant sulfonyl chloride to OMCS. Finally, the anti-reduction properties of the polymer dyes were estimated and compared with the edible colorants by a nicotinamide adenine dinucleotide reduction experiment, and the results showed that the prepared polymers showed an obvious improvement in the anti-reduction properties.

Synthesis and supercapacitor performance studies of N-doped graphene materials using o-phenylenediamine as the double-N precursor

Co-reporter:Yanhong Lu, Fan Zhang, Tengfei Zhang, Kai Leng, Long Zhang, Xi Yang, Yanfeng Ma, Yi Huang, Mingjie Zhang, Yongsheng Chen

Carbon 2013 Volume 63() pp:508-516

Publication Date(Web):November 2013

DOI:10.1016/j.carbon.2013.07.026

N-doped graphene (NG) materials have been prepared through a one-step solvothermal reaction by using o-phenylenediamine as a double-N precursor. N-doping and reduction of graphene oxide (GO) are both achieved simultaneously during the solvothermal reaction. The results of scanning electron microscopy and high resolution transmission electron microscopy measurements indicate that NG is highly crumpled. And the N-doping is confirmed by elemental analysis, X-ray photoelectron spectroscopy, Raman spectroscopy, Fourier transformed infrared spectroscopy and ultraviolet–visible spectroscopy. The doping level of nitrogen reaches up to 7.7 atom% and the types in NG are benzimidazole-N and phenazine-N. The NG materials exhibit excellent electrochemical performance for symmetric supercapacitors with a high specific capacitance of 301 F g−1 at a current density of 0.1 A g−1 in 6 M KOH electrolyte, which is remarkably higher than the solvothermal products of pristine GO (210 F g−1 at 0.1 A g−1). The NG materials also exhibit superior cycling stability (97.1% retention) and coulombic efficiency (99.2%) after 4000 cycles, due to the high content of nitrogen atoms, unique types of nitrogen and improved electronic conductivity.

CuI/TBAB as a novel efficient catalytic system for Heck reaction in water

Co-reporter:Yufang Wang, Qichao Yang, Li Yang, Jianxin Shi and Mingjie Zhang

RSC Advances 2013 vol. 3(Issue 44) pp:21251-21255

Publication Date(Web):11 Sep 2013

DOI:10.1039/C3RA44819C

A novel efficient ligand-free CuI/TBAB catalytic system has been developed for Heck reaction in water without the protection of an inert atmosphere. Both aryl iodides and aryl bromides containing electron-deficient and electron-donating groups reacted smoothly and afforded the corresponding products in moderate to good yields.

A novel N–O ligand for palladium-catalyzed Mizoroki–Heck reaction in neat water

Co-reporter:Yufang Wang, Qichao Yang, Li Yang, Jianxin Shi, Mingjie Zhang

Tetrahedron Letters 2013 Volume 54(Issue 39) pp:5314-5317

Publication Date(Web):25 September 2013

DOI:10.1016/j.tetlet.2013.07.097

1-(Morpholin-1-yl-pyridin-2-yl-methyl)-2-naphthol as a novel efficient N–O ligand has been developed for palladium-catalyzed Mizoroki–Heck reaction in neat water without the protection of an inert atmosphere. The reactions proceed smoothly and give the desired products in moderate to excellent yields. The catalyst system is reusable.

N-arylation of heterocycles catalyzed by activated-copper in pure water

Co-reporter:Qichao Yang, Yufang Wang, Dong Lin, Mingjie Zhang

Tetrahedron Letters 2013 Volume 54(Issue 15) pp:1994-1997

Publication Date(Web):10 April 2013

DOI:10.1016/j.tetlet.2013.02.004

Activated-copper powder is an efficient catalyst for the N-arylation of heterocycles with aryl halides and can be reused several times. The reactions can proceed smoothly in water by using LiOH as base and give the corresponding products in good yields. The protocol shows good tolerance toward various functional groups.

N-Arylation of heterocycles promoted by tetraethylenepentamine in water

Co-reporter:Qichao Yang, Yufang Wang, Li Yang, Mingjie Zhang

Tetrahedron 2013 69(30) pp: 6230-6233

Publication Date(Web):

DOI:10.1016/j.tet.2013.05.027

Erratum to “Synthesis and characterization amino-salicylaldimine palladium-based complexes and their Suzuki coupling reaction study” [Inorg. Chem. Commun. 12 (2009) 839–841]

Co-reporter:Yufang Wang, Jin Cui, Mingjie Zhang

Inorganic Chemistry Communications 2012 Volume 24() pp:259

Publication Date(Web):October 2012

DOI:10.1016/j.inoche.2012.07.011

Direct N-Arylation of Azaheterocycles with Aryl Halides under Ligand-free Condition

Co-reporter:Qichao Yang;Yufang Wang;Baoji Zhang

Chinese Journal of Chemistry 2012 Volume 30( Issue 10) pp:2389-2393

Publication Date(Web):

DOI:10.1002/cjoc.201100715

Abstract

A simple and efficient CN cross-coupling method of aryl halides with various heterocycles was reported, by using 10 mol% of CuI as catalyst and 1.2 equiv. NaH as base. Aryl iodides, aryl bromides and many substituted aryl chlorides could efficiently react with heterocycles, providing variety of N-arylated products in good to excellent yields. The ligand-free catalyst system was stable in air and could be readily reused.

Amino-salicylaldimine–palladium(II) complexes: New and efficient catalysts for Suzuki and Heck reactions

Co-reporter:Jin Cui, Mingjie Zhang, Yuwei Zhang

Inorganic Chemistry Communications 2010 Volume 13(Issue 1) pp:81-85

Publication Date(Web):January 2010

DOI:10.1016/j.inoche.2009.10.023

A series of amino-salicylaldimine–palladium(II) complexes bearing 5-methyl-3-(R-1-ylmethyl)-salicylaldimine ligands (R = morpholine, piperidine, pyrrolidine, 4-methylpiperazin, diisopropylamine) have been prepared and characterized by IR, 1H NMR and elemental analysis. Crystal structure details of complex 2b have been confirmed by X-ray structure analysis. The obtained Pd(II) complexes were found to be effective catalysts for the Suzuki and Heck cross-coupling reactions which could be carried out in the undried solvent under air.A series of new Pd(II) complexes bearing 5-methyl-3-(R-1-ylmethyl)-salicylaldimine (R = morpholine, piperidine, pyrrolidine, 4-methylpiperazine, diisopropylamine) have been synthesized and structurally analyzed. These palladium complexes exhibited good catalytic activity in the Suzuki–Miyaura and Heck–Mizoroki coupling reactions in DMF under air.

Foam Fractionation of Lycopene: An Undergraduate Chemistry Experiment

Co-reporter:Yan Wang, Mingjie Zhang and Yongliang Hu

Journal of Chemical Education 2010 Volume 87(Issue 5) pp:510-511

Publication Date(Web):March 10, 2010

DOI:10.1021/ed8001682

A novel experiment for the extraction of lycopene from tomato paste by foam fractionation is described. Foam fractionation is a process for separating and concentrating chemicals by utilizing differences in their surface activities. Extraction of lycopene by foam fractionation is a new method that has not been previously reported in the literature. This experiment acquaints students with the concepts of green chemistry, the isolation of a natural product, and foam fractionation. In addition it provides experience with extraction and UV−vis spectrophotometric analysis. This experiment is suitable for an undergraduate laboratory course.Keywords (Audience): Upper-Division Undergraduate; Keywords (Domain): Laboratory Instruction; Organic Chemistry; Polymer Chemistry; Keywords (Pedagogy): Hands-On Learning/Manipulatives; Keywords (Topic): Applications of Chemistry; Aqueous Solution Chemistry; Dyes/Pigments; Food Science; UV−Vis Spectroscopy;

Clean synthesis of calix[4]crown-5-sulfonyl cyclothiourea derivatives at room temperature in aqueous solution

Co-reporter:Cong Wen Ding, Ming Jie Zhang, Ning Ma

Chinese Chemical Letters 2009 Volume 20(Issue 10) pp:1166-1169

Publication Date(Web):October 2009

DOI:10.1016/j.cclet.2009.04.031

Calix[4]-crown-5-sulfonyl cyclothiourea derivatives 6 and 7 were synthesized from calix[4]-crown-5-monosulfonylethylenediamine derivatives 4 and 5 and carbon disulfide through nucleophilic addition and subsequent cyclization of intramolecule at room temperature in aqueous solution. The advantages of the novel protocol are the mild reaction condition, free organic solvent, simple final treatment, easy isolation of products and excellent yields.

Synthesis and characterization amino-salicylaldimine palladium-based complexes and their Suzuki coupling reaction study

Co-reporter:Jin Cui, Mingjie Zhang, Yan Wang, Zhongbo Li

Inorganic Chemistry Communications 2009 Volume 12(Issue 9) pp:839-841

Publication Date(Web):September 2009

DOI:10.1016/j.inoche.2009.06.031

A series of amino-salicylaldimine ligands, 5-R-3-morpholinomethyl-salicylaldimine (R = t-Bu, CH3, Br) have been synthesized and structurally analyzed. These tridentate ligands add to palladium (II) to give high yields of air-stable complexes that are characterized by IR, 1H NMR and elemental analysis. Crystal structure details of complex 1 are presented. These Pd (II) complexes with amino-salicylaldimine ligands are versatile and efficient Suzuki catalysts towards cross-coupling of a variety of aryl chlorides with phenylboronic acid using DMF as solvent.A series of palladium (II) complexes bearing new amino-salicylaldimine ligands have been synthesized and structurally characterized. These palladium complexes showed the high catalytic activity for the Suzuki reaction of activated aryl chlorides with phenylboronic acid in DMF under air atmosphere

Synthesis and characterization of a salt-resisting superabsorbent based on poly(acrylic acid) with sodium tungstate as a crosslinker

Co-reporter:Chang-Ying Liu;Ming-Jie Zhang;Jie Zhu ;Shan-Shan Ma

Journal of Applied Polymer Science 2008 Volume 110( Issue 4) pp:2440-2445

Publication Date(Web):

DOI:10.1002/app.28258

Abstract

A novel salt-resistant superabsorbent polymer was synthesized by solution polymerization from the monomer acrylic acid (AA) with potassium persulfate as the initiator. Sodium tungstate was first employed as a crosslinker in the preparation to achieve a better crosslinked polymer (WPAA). In addition to the xerogel WPAA, sodium hydroxide and tris(2-hydroxyethyl)amine (TEA) were introduced for the preparation of WPAA–sodium and WPAA–TEA hydrogels, respectively. The effect on the water absorbency of factors such as the reaction temperature, degree of neutralization of AA, and amounts of the crosslinker sodium tungstate and the initiator were investigated. The crosslinked xerogels were characterized with infrared spectroscopy. These crosslinked superabsorbent composites with sodium tungstate were characterized with thermogravimetric analysis and scanning electron microscopy. The water absorbencies of these superabsorbent composites in water and saline solutions were investigated. Results obtained from this study showed that under the same synthesis conditions, in comparison with superabsorbent composites with an aluminum salt as a crosslinker and styrene as a graft copolymer, the salt resistance of the superabsorbent composite synthesized with sodium tungstate as a crosslinker was obviously enhanced. Moreover, the WPAA–TEA xerogel had absorbency values of 223.6 and 81.9 g/g for distilled water and a 0.9 wt % NaCl solution, respectively, and it showed better salt resistance and a better water-absorbing rate than the WPAA–sodium xerogel because of the modification with triethanolamine. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008