A study of photocyclization of O-alkyl N-(3-chloro-2-benzo [b] thienocarbonyl) monothiocarbamates

P Kutschy, J Imrich, J Bernát, P Kristian…

文献索引：Kutschy, Peter; Imrich, Jan; Bernat, Juraj; Kristian, Pavol; Fedorikova, Iveta Collection of Czechoslovak Chemical Communications, 1986 , vol. 51, # 9 p. 2002 - 2012

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被引用次数: 6

摘要

Abstract The O-alkyl N-(3-chloro-2-benzo [b] thienocarbonyl) monothiocarbamates prepared by the reaction of 2-isothiocyanatocarbonyl-3-chlorobenzo [b] thiophene with methanol, ethanol, 1-propanol, and 2-propanol are cyclized on irradiation with light of the wavelength above 300 nm to give high yields (80-90%) of 2-alkoxy-4H-benzo [b] thieno [2, 3-e]-1, 3- thiazin-4-one derivatives. From the absorption and emission spectra of the starting ...