5-Aryloxazolidines as Reagents for Double Alkylation of Arenes: A Novel Synthesis of 4-Aryltetrahydroisoquinolines
作者:Evgeny M. Buev、Anastasia A. Smorodina、Vladimir S. Moshkin、Vyacheslav Y. Sosnovskikh
DOI:10.1021/acs.joc.1c01881
日期:2021.11.5
double alkylation sequence to give alkaloid-like 4-aryltetrahydroisoquinolines in 12–94% yields. Three approaches for the controlled insertion of substituents into the target molecules and application of oxazolidine derivatives such as 1-arylethanol-2-amines or 4-hydroxytetrahydroisoquinolines in the alkylation of arenes are also described. An unprecedented two-step easily scalable synthesis of the
Direct syntheses of 4-aryl-1,2,3,4-tetrahydroisoquinolines and 1-aryl-2,3,4,5-tetrahydro-3-benzoazepines via hydroamination of enol carbamates
作者:José Crecente-Campo、M. Pilar Vázquez-Tato、Julio A. Seijas
DOI:10.1016/j.tet.2009.01.098
日期:2009.3
An efficient and simple procedure for the syntheses of 4-aryl-1,2,3,4-tetrahydroisoquinolines and 1-aryl-2,3,4,5-tetrahydro-3-benzoazepines has been developed. The approach uses easily available starting materials and requires just three steps. The hydroamination of an enol carbamate is the key step. This general and direct method has been applied to the total synthesis of the natural alkaloid cherylline
A novel approach for the direct C-4 arylation of N-methyl-1,2,3,4-tetrahydroisoquinolines by nucleophilic addition of beta-aminocarbanions to benzynes is described which provides a one-pot procedure for synthesis of the title compounds.