ChemInform Abstract: Novel Syntheses of 2,3-Dihydro-1,5-benzothiazepin-4(5H)-ones and 2H-1,4-Benzothiazin-3(4H)-ones
Autor: | Suoming Zhang, Alan R. Katritzky, Charles J. Rostek, Herman H. Odens, Otto W. Maender |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | ChemInform. 33 |
ISSN: | 1522-2667 0931-7597 |
DOI: | 10.1002/chin.200211152 |
Popis: | Nucleophilic additions of α-mercaptoalkanoate esters and β-mercaptoalkanoate acids to benzoquinone diimines, followed by cyclization with trifluoroacetic acid or 1,3-dicyclohexylcarbodiimide (DCC), provide novel, high-yielding syntheses of 2H-1,4-benzothiazin-3(4H)-ones (3a−f) and 2,3-dihydro-1,5-benzothiazepin-4(5H)-ones (5a−c), respectively. |
Databáze: | OpenAIRE |
Externí odkaz: |
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