Cycloacylation of N-phenyl-N′-R-thioureas with 3-aryl-2-propenoyl chlorides |
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Authors: | V N Britsun A N Esipenko M O Lozinskii |
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Institution: | (1) Institute of Organic Chemistry, Ukrainian Academy of Sciences, Kiev-94, 02660, Ukraine |
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Abstract: | Cycloalkylation of N-phenyl-N′-R-thiourea with 3-aryl-2-propenoyl chlorides in acetone gives as products 6-aryl-3-phenyl-2-(R-imino)-2,3,5,6-tetrahydro-4H-1,3-thiazin-4-one and their hydrochlorides. The same reaction carried out in acetone in the presence of K2CO3 leads to the formation of 6-aryl-3-phenyl-2-(R-imino)-2,3,5,6-tetrahydro-4H-1,3-thiazin-4-ones, N-(3-aryl-2-propenoyl)-N-phenylthioureas, 3-aryl-2-propenoylanilides, and phenyl isothiocyanate. |
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