P. Sebek, J. Kroulik, M. Husak, P. Sedmera, V. Havlicek, B. Kratochvil, J. Kuthan, “Ring Opening of Persubstituted 4<i>H</i>-Thiopyran 1-Oxide During Chlorination”, Mendeleev Commun., 1994, Volume 4, Issue 6,Pages <nobr>225

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Ring Opening of Persubstituted 4H-Thiopyran 1-Oxide During Chlorination

P. Sebek^a, J. Kroulik^a, M. Husak^b, P. Sedmera^c, V. Havlicek^c, B. Kratochvil^b, J. Kuthan^a

^a Department of Organic Chemistry, Institute of Chemical Technology, Prague, Czech Republic
^b Department of Solid State Chemistry, Institute of Chemical Technology, Prague, Czech Republic
^c Institute of Microbiology, Academy of Science of the Czech Republic, Prague

Abstract: Chlorination of 3,5-dichloro-2,4,4,6-tetraphenyl-4H-thiopyran 1-oxide 3(CI₂ in CS₂,20°C) followed byalcoholysis (EtOH, MeOH) gives ethyl or methyl (1E,4E)-1,4,5-trichloro-1,3,3,5-tetraphenylpenta-1,4-diene-1-sulfinates 5 and 6, respectively; the structure of 5 has been determined by X-ray analysis.

Language: English

DOI: 10.1070/MC1994v004n06ABEH000426