Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, Massachusetts 02125, USA.
Org Lett. 2011 Oct 7;13(19):5124-7. doi: 10.1021/ol2019899. Epub 2011 Sep 8.
An environmentally benign procedure for the hydrogenation of unprotected indoles is described. The hydrogenation reaction is catalyzed by Pt/C and activated by p-toluenesulfonic acid in water as a solvent. The efficacy of the method is illustrated by the hydrogenation of a variety of substituted indoles to their corresponding indolines which were obtained in excellent yields.
描述了一种环境友好的未保护吲哚加氢的方法。该加氢反应在水中以对甲苯磺酸为催化剂,Pt/C 为催化剂,在水中进行。该方法的有效性通过各种取代吲哚的加氢反应得到了说明,得到了相应的吲哚啉,产率很高。