SYNTHESIS OF HETEROANTHRACYCLINONE INTERMEDIATES: SYNTHESIS OF 6a,7,10,10a-TETRAHYDROBENZOTHIOXANTHEN-6,11,12-TRIONES
Autor: | Pahup Singh, Bhavna Choudhary, Anita Prashant, R. T. Pardasani |
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Rok vydání: | 1994 |
Předmět: | |
Zdroj: | Phosphorus, Sulfur, and Silicon and the Related Elements. 86:21-25 |
ISSN: | 1563-5325 1042-6507 |
DOI: | 10.1080/10426509408018383 |
Popis: | The synthesis of some benzothioxanthentriones related to heteroanthracyclinones is reported. 1,4-Dimethoxythioxanthen-9-one was prepared by condensation of 2,2′-dithiosalicylic acid and 1,4-dimethoxybenzene which was demethylated with borontribromide to give the corresponding hydroquinone. In situ oxidation with silver oxide followed by addition of various dienes gave 6a,7,10,10a-tetrahydrobenzothioxanthen-6,11,12-triones. The compounds have been characterised on the basis of elemental and spectral studies. |
Databáze: | OpenAIRE |
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