Diastereoselective addition of terminal alkynes to chiral nitrones: asymmetric synthesis of propargylic N-hydroxylamines
作者:Samir K. Patel、Sandrine Py、Shashi U. Pandya、Pierre Y. Chavant、Yannick Vallée
DOI:10.1016/s0957-4166(03)00032-6
日期:2003.3
1,3-Asymmetric induction in the Et2Zn-catalyzed addition of terminal alkynes was studied with nitrones bearing a chiral auxiliary on their nitrogen atom. The obtained propargylic N-hydroxylamines were generally isolated in good yields and with satisfactory to excellent diastereoselectivities.