N. Anand, K. Venkataraman
May 1, 1947
Citations
0
Influential Citations
2
Citations
Journal
Proceedings of the Indian Academy of Sciences - Section A
Abstract
Summary1∶7-Dihydroxy-3-methoxyxanthone has been synthesised and shown to be identical with natural gentisin. 7-Nitro-1 ∶ 3-dihydroxyxanthone, obtained by a Hoesch reaction between 5-nitrosalicylonitrile and phloroglucinol, followed by hydrolysis and cyclicisation, was methylated by diazomethane to its 3-methyl ether. This, on reduction, diazotisation, and hydrolysis with sulphuric acid, gave 3-methoxy-1 ∶ 7-dihydroxyxanthone, identical in all its properties with natural gentisin.