Glad to announce our most recent publication at the ACS Omega journal, entitled "Rhodium(III)-Catalyzed Intramolecular Annulations of Acrylic and Benzoic Acids to Alkyness" and authored by D. F. Fernadez, N. Casanova, J. L. Mascareñas and M. Gulías, is already available.
Abstract:Rh(III) catalysts can promote a formal (4 + 2) intramolecular oxidative annulation between acrylic or benzoic acid derivatives and alkynes. The reaction, which involves a C–H activation process, allows for a rapid assembly of appealing bicyclic pyran-2-ones and tricyclic isocoumarin derivatives in moderate to good yields. The α-pyrone moiety of the products provides for further manipulations to obtain relatively complex cyclic skeletons in a very simple manner.
External link: https://pubs.acs.org/doi/10.1021/acsomega.9b00022