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1.Tetrahedron Letters
Volume 43, Issue 32, 5 August 2002, Pages 5681-5683
Preparation of dibarbiturates of oxindole by condensation of isatin and barbituric acid derivatives
Branko S Jursic, a and Edwin D Stevensa

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http://dx.doi.org/10.1016/S0040-4039(02)01107-3

2.Tetrahedron
Volume 61, Issue 23, 6 June 2005, Pages 5595-5598
A regioselective synthesis of dispiro[oxindole-cyclohexanone]pyrrolidines and dispiro[oxindole-hexahydroindazole]pyrrolidines by sequential 1,3-dipolar cycloaddition and annulation through a microwave induced solvent-free approach
Jayadevan Jayashankaran, Rathna Durga R.S. Manian, Rajappan Venkatesan and Raghavachary Raghunathan

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http://dx.doi.org/10.1016/j.tet.2005.03.088

3. Tetrahedron Letters
Volume 48, Issue 16, 16 April 2007, Pages 2943-2947
An efficient one-pot synthesis of spiro dihydrofuran oxindole and spiro 2-hydroxytetrahydrofuran oxindole derivatives via (3+2) oxidative cycloaddition mediated by CAN
G. Savithaa, S.K. Nivedithaa, D. Muralidharana and P.T. Perumal

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http://dx.doi.org/10.1016/j.tetlet.2007.02.045

4. Tetrahedron Letters
Volume 48, Issue 26, 25 June 2007, Pages 4461-4465
An efficient synthesis of 4-bromo-N-substituted oxindoles by an intramolecular copper-catalyzed amidation reaction
Adri van den Hoogenband, a, , Jos H.M. Langea, Jack A.J. den Hartoga, Remco Henzena and Jan Willem Terpstra

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http://dx.doi.org/10.1016/j.tetlet.2007.05.009

5. Tetrahedron
Volume 63, Issue 42, 15 October 2007, Pages 10543-10548
Electrocatalytic multicomponent transformation of cyclic 1,3-diketones, isatins, and malononitrile: facile and convenient way to functionalized spirocyclic (5,6,7,8-tetrahydro-4H-chromene)-4,3′-oxindole system
Michail N. Elinson, a, , Alexey I. Ilovaiskya, Alexander S. Dorofeev, a, Valentina M. Merkulovaa, Nikita O. Stepanova, Fedor M. Miloserdova, Yuri N. Ogibina and Gennady I. Nikishin

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http://dx.doi.org/10.1016/j.tet.2007.07.080

6. Russian Journal of General Chemistry
Volume 78, Number 7 / Июль 2008 г.1427-1435
Synthesis of new 2,5-diamino-1,3-thiazole and 2-thiohydantoin derivatives by condensation of N -(2-Aryl-1-chloro-2-oxoethyl) carboxamides with thioureas
A. G. Balya1, A. N. Chernega2, S. A. But2, A. N. Vasilenko1, V. S. Brovarets1 and B. S. Drach1

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http://dx.doi.org/10.1134/S1070363208070268

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