Synthetical experiments in the chromone group
作者： V. Ramanathan , K. Venkataraman
DOI: 10.1007/BF03048503
关键词:
摘要: By Raney nickel hydrogenolysis of the 7-tosyl ester (V), 5:7-dihydroxy-3: 3′:4′-trimethoxyflavone (IV) has been converted into 5-hydroxy-3:3′:4′-trimethoxyflavone (VI). Persulphate oxidation (VI) gave 5: 8-dihydroxy-3: (VII), which was demethylated to 3:5:8:3′:4′-pentahydroxyflavone (III) by means aluminium bromide in benzene. This pentahydroxyflavone different its properties from ponderosin, yellow colouring matter ofPonderosa pine bark.
springer.com
sci-hub.se 参考文章(27)
L. Ramachandra Row, T. R. Seshadri, Synthesis of 5 ∶ 6-dihydroxy-flavonols Proceedings of the Indian Academy of Sciences - Section A. ,vol. 21, pp. 130- 133 ,(1945) , 10.1007/BF03051282
C. Mannich, P. Schumann, Wan Ho Lin, Über das Glukosid von Belamcanda chinensis (L.) Leman (Pardanthus chinensis Ker.) Shekanin (Tectoridin) Archiv der Pharmazie. ,vol. 275, pp. 317- 328 ,(1937) , 10.1002/ARDP.19372750504
R. L. Shriner, R. W. Stephenson, Synthesis of Tectorigenin Dimethyl Ether Journal of the American Chemical Society. ,vol. 64, pp. 2737- 2738 ,(1942) , 10.1021/JA01264A003
E. F. Kurth, James K. Hubbard, Extractives from Ponderosa Pine Bark Industrial & Engineering Chemistry. ,vol. 43, pp. 896- 900 ,(1951) , 10.1021/IE50496A035
R. C. Shah, C. R. Mehta, T. S. Wheeler, 290. The constitution of oroxylin-A. Part II. Attempted synthesis of oroxylin-A and the synthesis of wogonin Journal of The Chemical Society (resumed). pp. 1555- 1559 ,(1938) , 10.1039/JR9380001555
Fritz Wessely, Georg Herbert Moser, Synthese und Konstitution des Skutellareins Monatshefte Fur Chemie. ,vol. 56, pp. 97- 105 ,(1930) , 10.1007/BF02716040
Taichiro Oyamada, A NEW GENERAL METHOD FOR THE SYNTHESIS OF THE DERIVATIVES OF FLAVONOL Bulletin of the Chemical Society of Japan. ,vol. 10, pp. 182- 186 ,(1935) , 10.1246/BCSJ.10.182
St. v. Kostanecki, J. Tambor, Über einen weiteren synthetischen Versuch in der Gentisinreihe Monatshefte Fur Chemie. ,vol. 16, pp. 919- 925 ,(1895) , 10.1007/BF01519037
G. W. Kenner, M. A. Murray, S 39. The cleavage of sulphonic esters with Raney nickel catalysts Journal of The Chemical Society (resumed). ,(1949) , 10.1039/JR949000S178
W. BAKER, W. D. OLLIS, A new synthesis of isoflavones. Nature. ,vol. 169, pp. 706- 706 ,(1952) , 10.1038/169706A0