Diastereoselective borono-Mannich reactions on cyclic N-acyliminium ions
作者:Ian R. Morgan、Arife Yazici、Stephen G. Pyne
DOI:10.1016/j.tet.2007.11.046
日期:2008.2
The addition of boronic acids to five- and six-memberedring N-acyliminium ions has been employed to prepare 5- and 6-substituted 4-hydroxypyrrolidin-2-ones and 5-hydroxypiperidin-2-ones, respectively, in a diastereoselective fashion.