Junta de Castilla y Leon (BU021A09 和 GR-172) 以及教育部长 (MEC) 和 FEDER (CTQ2007-61436/BQU 和 CTQ2009-09949/BQU) 提供财政支持。DM 和 AM 感谢 MEC 提供 MEC-FPU 博士前奖学金。MG 感谢 MEC 的“外国青年研究人员”合同 (SB2006-0215)。MAF-R。和PG-G。还要感谢 MEC 的“Ramon y Cajal”和“Juan de la Cierva”合同。
Al(OTf)(3) catalyzed the alkylation of indoles using secondary/tertiary propargylic alcohols to produce 3-propargylated indoles in excellent yields with high selectivity. The reactions were performed in air with commercial grade solvents, and water was the only side product of the process. The catalyst was recovered after completion of the reaction and re-used with minimum loss of activity over three cycles. (c) 2012 Elsevier Ltd. All rights reserved.
Anhydrous CeCl3 catalyzed C3-selective propargylation of indoles with tertiary alcohols
作者:Claudio C. Silveira、Samuel R. Mendes、Lucas Wolf、Guilherme M. Martins
DOI:10.1016/j.tetlet.2010.06.112
日期:2010.8
Anhydrous CeCl3 was successfully used as catalyst for the synthesis of several 3-propargyl indoles in good yields through the reaction of indole with propargyl alcohols in nitromethane. (C) 2010 Elsevier Ltd. All rights reserved.
Gold(I)-Catalyzed Tandem Reactions Initiated by 1,2-Indole Migrations