1.
J Org Chem
; 85(17): 11579-11588, 2020 Sep 04.
Article
in English
| MEDLINE
| ID: mdl-32786631
ABSTRACT
Cyclic anhydrides are versatile synthons and functional comonomers. Herein, we reported an organic base-promoted carboxylative cyclization of 2-butenoates with carbon dioxide to produce important glutaconic anhydrides in good yields. This metal-free reaction showed broad substrate scopes and proceeded under mild reaction conditions.