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Wan Y.,Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province | Chen L.-F.,Jiangsu University | Wang H.-Y.,Jiangsu University | Zhao L.-L.,Jiangsu University | And 6 more authors.
Asian Journal of Chemistry | Year: 2013

An efficient, one-pot, three-component cyclocondensation reaction of aromatic aldehydes, aromatic ketone and urea catalyzed by 1-methyl-3-[2- (sulfooxy)ethyl]-1H-imidazol-3-ium chloride is developed to give 4,6-diarylpyrimidin-2(1H)-ones. Source


Zhang X.-X.,Jiangsu University | Wan Y.,Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province | Pang L.-L.,Jiangsu University | Wang H.-Y.,Jiangsu University | And 8 more authors.
Journal of Heterocyclic Chemistry | Year: 2014

A highly atom-economic one-pot synthesis of five-substituted tetrahydropyridines via a five-component condensation of two equivalents of aromatic aldehyde, two equivalents of aromatic aniline, and one equivalent of β-keto ester catalyzed by silica sulfuric acid is reported. In this reaction, up to five new bonds and one new ring were formed in one pot with water as the only one by-product. © 2013 HeteroCorporation. Source


Wan Y.,Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province | Zhang X.-X.,Jiangsu University | Wang C.,Jiangsu University | Zhao L.-L.,Jiangsu University | And 6 more authors.
Tetrahedron | Year: 2013

Glucose sulfonic acid (GSA) was synthesized for the first time and used as an efficient catalyst for the preparation of tetrahydrobenzo[α]xanthens and tetrahydrobenzo[α]acridines via the reaction of aromatic aldehydes, 2-naphthol (or β-naphthylamine), and dimedone in water. Up to four new bonds and one new ring were formed in one-pot with water as the only by-product in these two reactions. The work opens up a new and efficient synthesis and application of sugar-containing Brønsted acid.© 2013 Elsevier Ltd. All rights reserved. Source


Wan Y.,Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province | Zhang X.-X.,Jiangsu University | Zhao L.-L.,Jiangsu University | Wang C.,Jiangsu University | And 6 more authors.
Journal of Heterocyclic Chemistry | Year: 2015

An efficient synthesis of 2-amino-4a,5,6,7-tetrahydronaphthalene-1,3,3(4H)-tricarbonitriles via the tandem four-component condensation of one equivalent of aromatic aldehyde, cyclohexanone, and two equivalents of malononitrile in ionic liquids was undertaken. Up to four new bonds and one new ring were formed in one-pot with water as the only by-product in this multi-component procedure. © 2014 HeteroCorporation. Source


Wang X.-S.,Xuzhou Normal University | Wang X.-S.,Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province | Li Q.,Xuzhou Normal University | Wu J.-R.,Xuzhou Normal University | Zhang M.-M.,Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province
Journal of Chemical Crystallography | Year: 2011

The 2-((E)-3-(2-nitrophenyl)-1-(4-methoxyphenyl) allylidene)malononitrile and 2-((E)-3-(2-chlorophenyl)-1-(4-bromophenyl)allylidene)malononitrile were synthesized and characterized by IR, 1H NMR, and elemental analysis. The molecular structures were further confirmed by X-ray diffraction analysis. The former 1, C19H13N3O3, is triclinic, space group P-1, a = 7.3834(13), b = 10.901(3), c = 11.227(2) Å, α = 88.64(2), β = 71.596(14), γ = 78.186 (18), Z = 2, V = 838.5(3) Å3. The unclassical hydrogen bond of C-H⋯N links the molecules forming polymers. The latter 2, C36H 20Br2Cl2N4, is orthorhombic, space group Pnma, a = 20.900 (4), b = 7.0710 (11), c = 10.9170 (18) Å, Z = 2, V = 1613.4(5) Å3. The same hydrogen bond of C-H⋯N and another type of C-H⋯Cl hydrogen bond link the adjacent molecules forming polymers along a axis. © Springer Science+Business Media, LLC 2010. Source

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