Trost Barry M, Lupton David W
Department of Chemistry, Stanford University, Stanford, CA 94305-8080, USA.
Org Lett. 2007 May 10;9(10):2023-6. doi: 10.1021/ol070618e. Epub 2007 Apr 18.
The dinuclear zinc catalyst 1a was found to catalyze the addition of nitroalkanes to carbamate-protected imines. This aza-Henry reaction proceeds with high enantioselectivity when various carbamate-protected imines are used. alpha,beta-Unsaturated imines proved to be a particularly useful class of substrate routinely giving the alpha-nitro amine products in high enantiomeric excess.
发现双核锌催化剂1a能催化硝基烷烃与氨基甲酸酯保护的亚胺的加成反应。当使用各种氨基甲酸酯保护的亚胺时,这种氮杂亨利反应具有高对映选择性。α,β-不饱和亚胺被证明是一类特别有用的底物,通常能以高对映体过量得到α-硝基胺产物。