Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.
J Org Chem. 2009 Dec 4;74(23):9222-4. doi: 10.1021/jo902089e.
Lewis acids catalyze the cyclization of methyl phenyldiazoacetates with an ortho-imino group, prepared from o-aminophenylacetic acid, to give 2,3-substituted indoles in quantitative yields.
路易斯酸催化具有邻亚氨基的甲基苯基亚氮乙酸酯(由邻氨基苯乙酸制备)环化,以定量产率得到 2,3-取代的吲哚。