Syntheses of triazolo[6,7-d]phthalide and triazolo[6,7-d]dihydrocoumarin |
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Authors: | Alan R. Katritzky Fu-Bao Ji Wei-Qiang Fan Paolo Beretta M. Bertoldi |
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Abstract: | Triazolo[6,7-d]phthalide has been synthesized in a seven step sequence from phthalide in 24% overall yield, and triazolo[6,7-d]dihydrocoumarin has been prepared in nine steps from dihydrocoumarin in 20% overall yield. The 1H and 13C nmr spectra and the tautomeric equilibria of the final compounds and intermediates are discussed. |
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