Unprecedented Cu(I)-Catalyzed Microwave-Assisted Three-Component Coupling of a Ketone, an Alkyne, and a Primary Amine
作者:Olga P. Pereshivko、Vsevolod A. Peshkov、Erik V. Van der Eycken
DOI:10.1021/ol1008312
日期:2010.6.4
An efficient, microwave-assisted Cu(I)-catalyzed one-pot coupling of a ketone, an alkyne, and a primary amine (KA(2) coupling) is described, giving access to secondary propargylamines.
Diversity-Oriented Silver(I)-Mediated Synthesis of Spiro-2-aminoimidazoles
作者:Denis Ermolat’ev、Erik Van der Eycken、Olga Pereshivko、Vsevolod Peshkov、Sofie Van Hove、Kristof Van Hecke、Luc Van Meervelt
DOI:10.1055/s-0030-1260012
日期:2011.5
A diversity-oriented protocol giving access to a novel class of spiro-cyclic guanidine derivatives is described. The copper(I)-catalyzed, three-component coupling of a ketone, an alkyne and a primary amine (KA²-coupling) provides the required secondary propargylamines and assures the generation of diversity. The key step of the protocol, a silver(I)-mediated tandem guanylation of secondary propargylamines
Zinc-aluminum mixed oxide nanocomposites catalyzed KA2 coupling of ketone, amine, and an alkyne: An environmentally benign approach
作者:Rahul、Gunjan Purohit、Diwan S. Rawat
DOI:10.1016/j.tetlet.2024.154987
日期:2024.4
alkyne affording wide range of functional substrates with higher conversion rates and yield. The sustainability of the catalyst was also studied systematically by evaluating the green chemistry metrics such as E factor, atom economy and turn over numbers. Notably, the architectures proposed methodology not only highlights the versatility of environmentallybenign novel catalyst but also displays lower leaching