Rangaswami, S. ; Seshadri, T. R. (1939) Synthetic experiments in the benzo-pyrone series. Part I. Synthesis of karanjin-α-carboxylic acid Proceedings of the Indian Academy of Sciences, Section A, 9 (3). pp. 259-264. ISSN 0370-0089
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Official URL: http://www.ias.ac.in/j_archive/proca/9/3/259-264/v...
Related URL: http://dx.doi.org/10.1007/BF03046466
Abstract
2-Methyl-3-methoxy-7-hydroxychromone-8-aldehyde formed a sodium derivative which readily condensed with bromoacetic ester to form the corresponding carbethoxy-methyl ether. This reaction did not take place satisfactorily with 3-methoxy-7-hydroxyflavone-aldehyde. The condensation was, however, smoothly effected in boiling benzene solution in the presence of potassium carbonate. When hydrolysed with aqueous potassium hydroxide, simultaneous ring-closure took place to yield 3-methoxyflavono-7:8-furan-α-carboxylic acid which is considered to be karanjin-α-carboxylic acid.
Item Type: | Article |
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Source: | Copyright of this article belongs to Indian Academy of Sciences. |
ID Code: | 31961 |
Deposited On: | 18 Mar 2011 09:35 |
Last Modified: | 17 May 2016 14:43 |
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