1-Ethynyl-6,18-endo-ethenodihydrothebainehydroquinone reacted with azides in the presence of CuSO4·5H2O and sodium ascorbate in DMF, forming the respective 1-(N-alkyl(arylalkyl)triazol-4-yl)-6,18-endo-ethenodihydrothebainehydroquinones, which underwent retrodiene cleavage upon heating in DMF, forming functionalized tetrahydrofuro[4,3,2-fg][3]benzazocines containing… Click to show full abstract
1-Ethynyl-6,18-endo-ethenodihydrothebainehydroquinone reacted with azides in the presence of CuSO4·5H2O and sodium ascorbate in DMF, forming the respective 1-(N-alkyl(arylalkyl)triazol-4-yl)-6,18-endo-ethenodihydrothebainehydroquinones, which underwent retrodiene cleavage upon heating in DMF, forming functionalized tetrahydrofuro[4,3,2-fg][3]benzazocines containing naphthohydroquinone and 1,2,3-triazolyl substituents.
               
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