Highly Efficient Synthesis of Allenes from Trimethylaluminum Reagent and Propargyl Acetates Mediated by a Palladium Catalyst
作者:Qing-Han Li、Jung-Yuan Jeng、Han-Mou Gau
DOI:10.1002/ejoc.201403008
日期:2014.12
A series of propargylacetates were prepared and used as propargyl electrophiles for coupling reactions with trimethylaluminum. The simple catalytic system of palladium(II) acetate (1 mol-%) and tri(o-tolyl)phosphine (2 mol-%) worked efficiently for a wide variety of aromatic and aliphatic propargylacetates, producing the substituted allenes in good to excellent yields of up to 94 % in tetrahydrofuran
制备了一系列乙酸炔丙酯并将其用作炔丙基亲电试剂与三甲基铝进行偶联反应。乙酸钯 (II) (1 mol-%) 和三(邻甲苯基)膦(2 mol-%)的简单催化体系对多种芳香族和脂肪族乙酸炔丙酯有效地工作,产生了良好的取代丙二烯在四氢呋喃中的产率高达 94%。该过程简单易行,为合成取代的丙二烯衍生物提供了一种有效的方法。根据实验结果,提出了一种可能的催化循环。
Skipped diynes. V. Secondary diethynyl carbinols. Base-catalyzed ynol to enol rearrangements and ultraviolet spectra and conjugation
作者:Kenneth G. Migliorese、Yoshinari Tanaka、Sidney I. Miller
DOI:10.1021/jo00920a001
日期:1974.3
TiCl4-mediated amination of propargylic esters
作者:R Mahrwald、S Quint
DOI:10.1016/s0040-4039(01)00012-0
日期:2001.2
The TiCl4-mediated substitution of propargylic esters with amides afforded the corresponding or-substituted propargylic amides. (C) 2001 Elsevier Science Ltd. All rights reserved.