The behaviour of unsaturated 1,2-hydroxyiminoketones with trifluoroacetic acid |
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| Affiliation: | 1. Department of Physics, Fatima Mata National College, Kollam, Kerala, India;2. Department of Physics, TKM College of Arts and Science, Kollam, Kerala, India;3. Department of Chemistry, University of North Bengal, Siliguri, West Bengal, India;4. Department of Biotechnology, University of North Bengal, Siliguri, West Bengal, India;5. Department of Chemistry, University of Antwerp, B2610 Antwerp, Belgium;1. National Research Council of Italy, C.N.R., Istituto di Chimica dei Composti Organo Metallici-ICCOM- UOS Pisa, Area di Ricerca, Via G. Moruzzi 1, 56124 Pisa, Italy;2. National Research Council of Italy, C.N.R., Istituto Nazionale di Ottica, INO-UOS Pisa, Area di Ricerca, Via G. Moruzzi 1, 56124 Pisa, Italy;1. N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Pr., 47, Moscow 119991, Russian Federation;2. Department of Fine Organic Synthesis and Chemistry of Dyes, D. Mendeleyev University of Chemical Technology of Russia, Miusskaya Sq., 9, Moscow 125047, Russian Federation;3. A.N. Nesmeyanov Institute of Organoelement Compounds, Vavilova Str. 28, Moscow 119991, Russian Federation;4. Lomonosov Moscow State University, Moscow 119991, Russian Federation |
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| Abstract: | (E)-1,2-Hydroxyiminoketones containing an appropriately positioned and substituted olefinic group afford high yields of various 5- and 6-membered heterocyclic systems when reacted with trifluoroacetic acid. Under the same conditions inappropriately substituted unsaturated 1,2-hydroxyiminoketones fragment by means of the second order Beckmann process. |
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