One-Pot Catalytic Enantioselective Synthesis of Tetrahydropyridines via a Nitro-Mannich/Hydroamination Cascade
作者:David M. Barber、Hitesh J. Sanganee、Darren J. Dixon
DOI:10.1021/ol302459c
日期:2012.10.19
The highly enantioselective preparation of synthetically useful tetrahydropyridine derivatives employing a one-pot nitro-Mannich/hydroamination cascade is reported. This approach utilizes an asymmetric organocatalytic nitro-Mannich reaction followed by a gold-catalyzed alkyne hydroamination/isomerization sequence that yields the desired tetrahydropyridines in good yields and high diastereo- and enantioselectivities
报道了使用一锅硝基-曼尼希/加氢胺化级联反应对合成有用的四氢吡啶衍生物进行高度对映选择性的制备。该方法利用不对称的有机催化硝基曼尼希反应,然后进行金催化的炔烃加氢胺化/异构化序列,该序列以良好的收率和高的非对映和对映选择性产生所需的四氢吡啶。