An unexpected skeletal transformation of 1,4-dihydroxythioxanthen-9-one on treatment with iodic acid: the first construction of the 2-(5-oxofuran-2-ylidene)-1-benzothienyl-3-one core |
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| Authors: | Vladimir A Loskutov |
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| Institution: | N. N. Vorozhtsov Institute of Organic Chemistry, Siberian Division of the Russian Academy of Sciences, Lavrentiev Ave. 9, Novosibirsk 630090, Russia |
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| Abstract: | Treatment of 1,4-dihydroxythioxanthen-9-one with iodic acid gives, depending on the reaction conditions, predominantly either thioxanthen-1,4,9-trione or, unexpectedly, 2-(5-oxofuran-2(5H)-yliden)-1-benzothienyl-3(2H)-one. The latter is obtained in 60% yield. |
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| Keywords: | Skeletal transformation 1 4-Dihydroxythioxanthen-9-one Iodic acid Oxofuranyliden-benzothiophenone Thioxanthen-1 4 9-trione |
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