Sibi Mukund P, Tatamidani Hiroto, Patil Kalyani
Department of Chemistry, North Dakota State University, Fargo, North Dakota 58105, USA.
Org Lett. 2005 Jun 23;7(13):2571-3. doi: 10.1021/ol050630b.
[reaction: see text] Rhodium-catalyzed conjugate addition of an aryl boronic acid to alpha-methylamino acrylates followed by enantioselective protonation of the oxa-pi-allylrhodium intermediate provides access to aryl-substituted beta(2)-amino acids. The impact of the different variables of the reaction on the levels of enantioselectivity has been assessed.
[反应:见正文] 铑催化芳基硼酸与α-甲基氨基丙烯酸酯的共轭加成,随后对氧杂-π-烯丙基铑中间体进行对映选择性质子化,从而得到芳基取代的β(2)-氨基酸。已评估了反应的不同变量对对映选择性水平的影响。