Tandem Hydroformylation/Fischer Indole Synthesis: A Novel and Convenient Approach to Indoles from Olefins
作者:Petra Köhling、Axel M. Schmidt、Peter Eilbracht
DOI:10.1021/ol0350184
日期:2003.9.1
[reaction: see text] A novel one-pot synthesis of indole systems via tandem hydroformylation/Fischer indole synthesis starting from olefins and arylhydrazines is described. This tandem procedure leads directly to 3-substituted indoles if unsubstituted phenylhydrazine is used and to 3,5- respectively 3,7-disubstituted indoles if para- or ortho-substituted arylhydrazines are used.
[反应:见正文]描述了一种通过串联加氢甲酰化/费歇尔吲哚合成从烯烃和芳基肼开始的新颖的一锅合成。如果使用未取代的苯肼,则该串联过程直接导致3-取代的吲哚,而如果使用对或邻取代的芳基肼,则直接导致3,5-分别为3,7-二取代的吲哚。