Photoredox catalyzed cascade CF 3 addition/chemodivergent annulations of ortho -alkenyl aryl ureas.

Autor: Babu SS; Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India. gopi@iisertirupati.ac.in., Varma AA; Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India. gopi@iisertirupati.ac.in., Gopinath P; Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India. gopi@iisertirupati.ac.in.
Jazyk: angličtina
Zdroj: Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2022 Feb 08; Vol. 58 (12), pp. 1990-1993. Date of Electronic Publication: 2022 Feb 08.
DOI: 10.1039/d1cc06289a
Abstrakt: Herein, we report a substrate-controlled cascade cyclization of o -alkenyl aryl ureas, an ambident nucleophile for constructing functionalized heterocycles such as 2-amino-1,3-benzoxazines and dihydroquinazolinones in a chemodivergent fashion using photoredox catalysis under mild conditions. The versatility of the method has been successfully demonstrated by applying this strategy to a wide range of substrates and for the synthesis of functionalized etifoxine drug derivatives.
Databáze: MEDLINE