Synthesis and some properties of 2,3-dihydrofuro[2,3-b]quinol-4-one |
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Authors: | N B Marchenko V G Granik |
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Institution: | (1) S. Ordzhonikidze All-Union Scientific-Research Institute of Pharmaceutical Chemistry, 119021 Moscow |
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Abstract: | The reaction of O-ethylbutyrolactonium tetrafluoroborate with ethyl anthranilate gave the corresponding imido ester, which undergoes cyclization to a furo2,3-b]-quinol-4-one derivative when it is heated in a solution of sodium butoxide. When the latter product is heated in diphenyl oxide, it is converted to a furo3,2-c]-quinol-2-one derivative.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 65–67, January, 1982. |
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