A new multicomponent synthesis of functionalized enamidyltriazoles starting from simple and readily available starting materials is described. A simple treatment of a dichloromethane solution of an azide, amine, and 5‐bromo‐2‐furylcarbinol with a Lewis acid provides the enamidyltriazole in good to high yield. A triple domino sequence, formal [3+2] cycloaddition/ring‐opening/amidation, is involved
A novel stereospecific synthesis of (Z)- and (E)-β-triazole-acrylates by the combined use of a multicomponent reaction and photocatalyst-free photoisomerization is presented. The former can be regarded as a furfuryl cation induced formal [3 + 2]-cycloaddition/ring-opening/esterification domino sequence, which provides fast access to a variety of structurally diverse (Z)-β-triazole-acrylates. The products
thioesterification between thiols, 5‐bromo‐2‐furylcarbinols, and azides that provides rapid access to thioesters bearing a triazole moiety, highlighted by the cascade [3+2] cycloaddition/furan ring‐opening/thioesterification, is disclosed. Selenols are also suitable for this reaction. The new reaction features simple reaction conditions of AcCl/HFIP and a general substrate scope.