Summary
The synthesis and identity of karanjin-α-carboxylic acid reported earlier is now confirmed and karanjin obtained from it thus completing the synthesis of this flavono-furan by the process of building up a furan structure on a flavone system.
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References
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Row, L.R., Seshadri, T.R. Synthetic experiments in the benzopyrone series. Proc. Indian Acad. Sci. (Math. Sci.) 33, 168 (1951). https://doi.org/10.1007/BF03172201
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DOI: https://doi.org/10.1007/BF03172201