Direct enantio- and diastereoselective Mannich reactions of malonate and beta-keto esters with N-Boc and N-Cbz aldimines catalysed by a bifunctional cinchonine derivative.
Chem Commun (Camb). 2006 Mar 21;(11):1191-3. doi: 10.1039/b515725k. Epub 2006 Feb 1.
Chem Commun (Camb). 2006.
PMID: 16518487