Synthesis of Enantiopure Unnatural Amino Acids by Metallaphotoredox Catalysis
作者:Tomer M. Faraggi、Caroline Rouget-Virbel、Juan A. Rincón、Mario Barberis、Carlos Mateos、Susana García-Cerrada、Javier Agejas、Oscar de Frutos、David W. C. MacMillan
DOI:10.1021/acs.oprd.1c00208
日期:2021.8.20
wide array of optically pure unnatural amino acids. This method utilizes a photocatalytic cross-electrophile coupling between a bromoalkyl intermediate and a diverse set of aryl halides to produce artificial analogues of phenylalanine, tryptophan, and histidine. The reaction is tolerant of a broad range of functionalities and can be leveraged toward the scalable synthesis of valuable pharmaceutical scaffolds
Stille reaction is designed for the first time, allowing for the construction of a rich range of C(sp3)−C(sp3), C(sp3)−C(sp2), and C(sp3)−C(sp) bonds in good to high yields with excellent stereoselectivity under exceptionally mild conditions. The innovative use of synergistic photoredox/nickel catalysis enables a novel single-electron transmetalation process of stannane reagents, providing a new research