Synthesis of 4-carboxy-2,3-dihydrofuro(2
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P. Lakshminarayana; P. Shanmugam; K.K. Balasubramanian
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Article
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1970
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Elsevier Science
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French
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It has been observed' that J-(l'-propenyl)P-quinolonee readily yield 2-methyl-2,3-dihydrofuro(2,3-b)quinolines on treatment with polyphosphorio acid whereas 3-vinyl-2-quinolones do not afford the oorreeponding dihydrofuroquinolines under the same conditions2. In this communication, we report a novel