Abstract
An efficient multicomponent reaction for the synthesis of novel 8-alkoxycarbonylnaphthyl-functionalized pyrazolo[3,4-b]pyridines from 5-aminopyrazoles, β-ketoesters, actenaphthylene-1,2-dione, and aliphatic alcohol in the presence of inexpensive and environmentally friendly iron(III) chloride is described. It is a fascinating example for the direct conversion of actenaphthylene-1,2-dione to naphthoic ester fragment via C–C bond cleavage reaction.
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We are grateful to the support from the Educational Commission of Hubei Province, China (No. B2015132).
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Fan, L., Yao, C. & Wei, X. FeCl3-catalyzed multicomponent synthesis of 8-alkoxycarbonylnaphthyl-functionalized pyrazolo[3,4-b]pyridines involving C–C bond cleavage. Monatsh Chem 147, 1597–1603 (2016). https://doi.org/10.1007/s00706-016-1656-3
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DOI: https://doi.org/10.1007/s00706-016-1656-3