Furan Ring-Opening/Indole Ring-Closure: Pictet-Spengler-Like Reaction of 2-(<i>o</i>-Aminophenyl)furans with Aldehydes
作者:Alexander V. Butin、Maxim G. Uchuskin、Arkady S. Pilipenko、Fatima A. Tsiunchik、Dmitry A. Cheshkov、Igor V. Trushkov
DOI:10.1002/ejoc.200901241
日期:2010.2
new simple approach to 3-(2-acylvinyl)-2-(hetero)aryl-indoles has been developed. The method is based on the acid-catalysed interaction of 2-(2-aminophenyl)furans with (hetero)aromatic aldehydes. The reactions proceed under very mild conditions and lead to indoles containing a reactive α,β-unsaturated ketone moiety, which is suitable for further transformations, in moderate to good yields.
已开发出一种新的简单方法来制备 3-(2-酰基乙烯基)-2-(杂) 芳基-吲哚。该方法基于 2-(2-氨基苯基)呋喃与(杂)芳香醛的酸催化相互作用。反应在非常温和的条件下进行,并产生含有活性 α,β-不饱和酮部分的吲哚,适合进一步转化,产率中等至良好。