A Base-Catalyzed Domino-Isomerization–Hydroamination Reaction—A New Synthetic Route to Amphetamines
作者:Christian G. Hartung、Claudia Breindl、Annegret Tillack、Matthias Beller
DOI:10.1016/s0040-4020(00)00436-1
日期:2000.7
An efficient synthesis of pharmaceutically interesting amphetamines by a base-catalyzed domino-isomerization–hydroamination reaction is presented. Starting from allylbenzene and various primary or secondary amines, the basic structural pattern of amphetamines is synthesized directly in yields of up to 91% in the presence of catalytic amounts of n-butyllithium.
Synthesis of β-phenylethylamines from styrene derivatives
作者:Julio A. Seijas、M.Pilar Vázquez-Tato、César Entenza、M. Montserrat Martínez、M.Gabriela Ònega、Susana Veiga
DOI:10.1016/s0040-4039(98)00907-1
日期:1998.7
β-Phenylethylamines are prepared from the styrenederivatives: 4,4-dimethyl-2-(2-vinylphenyl)-2-oxazoline, 2-(3-methoxy-2-vinylphenyl)-4,4-dimethyl-2-oxazoline, 2-vinylbenzoic acid, styrene, (3-methylstyrene, and α-methylstyrene.
Achieving Aliphatic Amine Addition to Arylalkynes via the Lewis Acid Assisted Triazole-Gold (TA-Au) Catalyst System
作者:Teng Jia、Shengyu Fan、Fengmian Li、Xiaohan Ye、Wenke Zhang、Zhiguang Song、Xiaodong Shi
DOI:10.1021/acs.orglett.1c02098
日期:2021.8.6
Transition metal catalyzed intermolecular hydroamination of the arylalkynes with aliphatic amine is generally problematic due to the good coordination between amine and metal cation. With the combination of 1,2,3-triazole coordinated gold(I) catalyst (TA-Au) and Zn(OTf)2 cocatalyst, this challenging transformation was achieved with good to excellent yields and regioselectivity. Compared to previously