Oxidative free radical reactions of enamino esters
作者:Che-Ping Chuang、Yi-Lung Wu
DOI:10.1016/j.tet.2003.12.035
日期:2004.2
produced by the cerium(IV) ammoniumnitrate (CAN) oxidation of β-dicarbonyl compounds undergo efficient addition to the C–C double bond of enamino esters. This CAN mediated free radical reaction between enamino esters and β-dicarbonyl compounds provides a novel method for the synthesis of highly substituted pyrroles. The direct CAN oxidation of β-enaminocinnamates gave the dimerization products effectively
The synthesis of 5-arylpyrrolo[3,2-<i>b</i>]pyridines and 7-arylpyrrolo[3,2-<i>b</i>]pyridines: Addition of 3-aminopyrroles to aryl enaminones
作者:Gary H. Birnberg、William J. Fanshawe、Gerardo D. Francisco、Joseph W. Epstein
DOI:10.1002/jhet.5570320433
日期:1995.7
A series of 5-arylpyrrolo[3,2-b]pyridines 1 was synthesized by addition of 3-aminopyrroles to arylenaminones. One example of a 7-arylpyrrolo[3,2-b]pyridine 2 was obtained as a minor product along with the 5-aryl isomer, by a modification of the reaction sequence.
通过将3-氨基吡咯加到芳基烯胺酮上,合成了一系列5-芳基吡咯并[3,2- b ]吡啶1。通过改变反应顺序,获得了作为次要产物的7-芳基吡咯并[3,2- b ]吡啶2的一个实例,与5-芳基异构体一起。
Synthesis of highly substituted pyrroles via oxidative free radical reactions of β-aminocinnamates
作者:An-I Tsai、Che-Ping Chuang
DOI:10.1016/j.tet.2005.12.011
日期:2006.3
reactions of β-aminocinnamates are described. Imine radicals produced by tetra-n-butylammonium cerium(IV) nitrate (TBACN) oxidation of enamines undergo efficient addition to the C–C double bond of β-aminocinnamates. This TBACN mediated free radical reaction between β-aminocinnamates and enamines provides a novel method for the synthesis of highly substitutedpyrroles. The direct TBACN oxidation of β-aminocinnamates