Synthesis of Isoxazole Conjugates of 1,4-Benzodioxane Moiety via Intermolecular 1,3-Dipolar Cycloaddition
摘要:
1,3-Dipolar cycloaddition was utilized as a tool to conjugate the 1,4-benzodioxane moiety with several biologically active compounds such as steroid, sugar, and other aromatic scaffolds via isoxazole or triazole bridge. The propynyl ether of 2-hydroxymethyl-1,4-benzodioxane underwent 1,3-dipolar cycloadditions smoothly with different in situ generated nitrile oxides in good yields. The triazole conjugate of 1,4-benzodioxane was synthesized via click chemistry.