Base‐Mediated Tandem 1,6‐Conjugate Addition/Cyclization Enabling the Synthesis of 4,5‐Disubstituted 3(2 H )‐Furanones From Haloacetoacetates and p ‐Quinone Methides
A transition‐metal‐free tandem 1,6‐conjugate addition/cyclization of haloacetoacetates with p ‐quinone methides has been developed as an efficient strategy for the synthesis of structurally diverse 4,5‐disubstituted 3(2H)‐furanones. The reaction proceeds under mild base‐mediated conditions, delivering the desired...