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
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