Pigments of cotton flowers - Part VI. Methylation of herbacetin
S Rangaswami P Suryaprakasa Rao T R Seshadri
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The action of diazomethane on herbacetin yields 3∶7∶8∶4′-tetramethylherbacetin. The pentamethyl ether is obtained by the further methylation of the above tetramethyl compound with dimethyl sulphate and sodium hydroxide in aqueous acetone medium.
S Rangaswami1 P Suryaprakasa Rao1 T R Seshadri1
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