Studies in dipyridyl chemistry. VII. Sulfur trioxide sulfonation of γ,γ′-dipyridyl |
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Authors: | A A Ziyaev O S Otroshchenko A S Sadykov |
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Institution: | (1) Lenin Tashkent State University, USSR |
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Abstract: | Reaction of ,![gamma](/content/lj446unw853q7412/xxlarge947.gif) -dipyridyl with sulfur trioxide at room temperature gives ,![gamma](/content/lj446unw853q7412/xxlarge947.gif) -dipyridyld'isulfotrioxide, which latter on heating at 200° gives ,![gamma](/content/lj446unw853q7412/xxlarge947.gif) -dipyridyl-sulfonic acid. Salts of ,![gamma](/content/lj446unw853q7412/xxlarge947.gif) -dipyridyl-3-sulfonic acid are prepared, among them the potassium, sodium, barium, and 3-cyano- ,![gamma](/content/lj446unw853q7412/xxlarge947.gif) -dipyridyl salts.For Part VI see 1]. |
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