Asymmetric vinylogous Mukaiyama aldol reaction of isatins under bifunctional organocatalysis: enantioselective synthesis of substituted 3-hydroxy-2-oxindoles
作者:Víctor Laina-Martín、Jorge Humbrías-Martín、José A. Fernández-Salas、José Alemán
DOI:10.1039/c8cc00759d
日期:——
A highly enantioselective organocatalytic vinylogousMukaiyamaaldolreaction of silyloxy dienes and isatins under bifunctional organocatalysis is presented. Substituted 3-hydroxy-2-oxindoles are synthesised in good yields and enantioselectivities. These synthetic intermediates are used for the construction of more complex molecules with biological properties such as the formal synthesis of a CB2 agonist