or terminal propargylamines and chalcones via A3-coupling reaction of aldehydes, amines, and alkynes catalyzed by an easily available catalyst Ag2CO3 under solvent-free condition. The reaction proceeded smoothly to deliver various products in good-to-excellent yields with good functional group tolerance. Gram-scale preparation, bioactive molecule synthesis and asymmetric substrates have been demonstrated
几个简单,快速和实用的协议已被开发来合成内部或末端炔丙胺和查耳酮通过甲3 -耦合醛,胺的反应,和炔由容易获得的催化剂催化的Ag 2 CO 3无溶剂条件下进行。反应进行得很顺利,以良好的收率和良好的官能团耐受性提供了各种产品。已经证明了克级制备,生物活性分子合成和不对称底物。此外,已经提出了合成不同产物的合理机制。
Aldehyde–alkyne–amine (A<sup>3</sup>) coupling catalyzed by a highly efficient dicopper complex
作者:Hong-Bin Chen、Yan Zhao、Yi Liao
DOI:10.1039/c5ra04729c
日期:——
A dicopper(i) complex was developed as highly efficient catalyst for A3 coupling reactions, which led to the formation of propargylamines.
一种双铜(i)配合物被开发为高效催化剂,用于A3偶联反应,导致丙炔胺的形成。
The First Cobalt-Catalyzed Transformation of Alkynyl C-H Bond: Aldehyde-Alkyne-Amine (A³) Coupling
作者:Chao-Jun Li、Wen-Wen Chen、Hai-Peng Bi
DOI:10.1055/s-0029-1219173
日期:2010.2
The first highly effective cobalt-catalyzed reaction of terminal alkynes was developed. The reaction of alkynes with aldehyde and amine generated a diverse range of propargyl amines in excellent yields by this method.
Facile synthesis of ZnAl<sub>2</sub>O<sub>4</sub>nanoparticles: efficient and reusable porous nano ZnAl<sub>2</sub>O<sub>4</sub>and copper supported on ZnAl<sub>2</sub>O<sub>4</sub>catalysts for one pot green synthesis of propargylamines and imidazo[1,2-a]pyridines by A<sup>3</sup>coupling reactions
作者:Triveni Rajashekhar Mandlimath、Kulathu I. Sathiyanarayanan
DOI:10.1039/c5ra20812b
日期:——
A simple, facile and efficient route was developed for the synthesis of nano ZnAl2O4 using ethanolamine. ZnAl2O4 nanoparticles were found to be smaller when calcined at 500 °C than at 700 °C. The synthesized nano ZnAl2O4 exhibited a high surface area of 147 m2 g−1 with a pore volume of 0.2 cm3 g−1. ZnAl2O4 nanoparticles were found to be spherical in shape with sizes ranging from 3–7 nm. For the first
开发了一种简单,便捷,有效的路线,利用乙醇胺合成纳米ZnAl 2 O 4。发现在500°C下煅烧的ZnAl 2 O 4纳米粒子比在700°C下煅烧的纳米粒子小。合成的纳米ZnAl 2 O 4的高表面积为147m 2 g -1,孔体积为0.2cm 3 g -1。发现ZnAl 2 O 4纳米颗粒为球形,大小范围为3–7 nm。首次探讨了纳米ZnAl 2 O 4的催化活性。通过芳族醛,哌啶和苯基乙炔的A 3偶联合成炔丙胺。在没有任何副产物的情况下实现了高收率。我们开发了Cu / nano ZnAl 2 O 4,并通过在N 2气氛下通过芳香醛,2-氨基吡啶和苯乙炔的三组分偶联将其用于咪唑并[1,2- a ]吡啶的合成。我们获得了良好的产量,纳米ZnAl 2 O 4和铜/纳米ZnAl 2 O 4被成功回收了五次。两种方案均简单,一锅,无溶剂,经济且不含添加剂。它们可以代替现有方案的替代方案,该方案涉