Microwave-enhanced bismuth triflate-catalyzed epoxide opening with aliphatic amines
作者:Thierry Ollevier、Etienne Nadeau
DOI:10.1016/j.tetlet.2007.12.100
日期:2008.2
In the presence of a catalytic amount of Bi(OTf)3·4H2O and under microwave irradiation, neat mixtures of epoxides and amines afforded smoothly the corresponding 2-amino alcohols. A wide variety of aliphatic amines were reacted with cycloalkene oxide, styrene oxide, and stilbene oxide. The reaction proceeded rapidly and afforded the 2-amino alcohols in high up to quantitative yields. All products could
Facile synthesis of amides <i>via</i> acceptorless dehydrogenative coupling of aryl epoxides and amines
作者:Yaoyu Liang、Jie Luo、David Milstein
DOI:10.1039/d2sc01959k
日期:——
The synthesis of amides is significant in a wide variety of academic and industrial fields. We report here a new reaction, namely acceptorless dehydrogenative coupling of epoxides and amines to form amides catalyzed by ruthenium pincer complexes. Various aryl epoxides and amines smoothly convert into the desired amides in high yields with the generation of H2 gas as the only byproduct. Control experiments
酰胺的合成在广泛的学术和工业领域具有重要意义。我们在这里报道了一种新的反应,即环氧化物和胺的无受体脱氢偶联形成由钌钳形配合物催化的酰胺。各种芳基环氧化物和胺以高产率顺利转化为所需的酰胺,产生的唯一副产物是 H 2气体。对照实验表明,酰胺的产生比副产物在动力学上更快,这可能是由于金属-配体合作容易激活环氧化物,这一点得到了对钌-烯醇化物的观察的支持。不涉及酒精或游离醛。提出了一种机制,涉及催化剂的双重作用,这是新反应高产率和选择性的原因。
Syntheses with Styrene Oxide
作者:William S. Emerson
DOI:10.1021/ja01220a004
日期:1945.4
Local Anesthetics. II.<sup>1</sup> Esters of 2-Amino-1-phenyl- and 2-Amino-2-phenyl-ethanols
作者:Seymour L. Shapiro、Harold Soloway、Edward Chodos、Louis Freedman
DOI:10.1021/ja01510a047
日期:1959.1
Zinc-catalyzed aminolysis of epoxides
作者:Laura Durán Pachón、Patrick Gamez、Jos J.M. van Brussel、Jan Reedijk
DOI:10.1016/s0040-4039(03)01480-1
日期:2003.8
A series of amino alcohols has been prepared by a novel zinc-catalyzed nucleophilic opening of epoxide rings by amines. (C) 2003 Elsevier Ltd. All rights reserved.