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Huisgen reaction of nitrile oxides and nitrile imines leading to isoxazoline and pyrazole-4,6-diones
Authors:J Kaur  B Singh  K K Singal
Institution:(1) Department of Chemistry, G.H.G. Khalsa College, Gurusar Sadhar, Ludhiana, 141 104 Punjab, India;(2) Department of Chemistry, Punjabi University, Patiala, 147 002 Punjab, India
Abstract:Huisgen reaction of nitrile oxides and nitrile imines generated in situ in the presence of N-benzylmaleimide afforded regiospecifically the corresponding cis-3-aryl-5-benzyl-3a,4,6,6atetrahydro-4H, 6H-pyrrolo3,4-d]isoxazoline-4,6-diones and cis-3-aryl-5-benzyl-1-(2′,4′-dibromophenyl)-3a, 4,6,6a-tetrahydro-1H,5H-pyrrolo3,4-c]pyrazole-4,6-diones in good yield. Published in Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 935–939, June, 2006.
Keywords:N-benzylmaleimide  nitrile imines  nitrile oxide  Huisgen reaction  regiospecific
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