Synthesis of Symmetric 1,4-Diamino-2-Butynes via a Cu(I)-Catalyzed One-Pot A<sup>3</sup>-Coupling/Decarboxylative Coupling of a Propiolic Acid, an Aldehyde, and an Amine
作者:Huangdi Feng、Denis S. Ermolat’ev、Gonghua Song、Erik V. Van der Eycken
DOI:10.1021/jo300562j
日期:2012.6.1
A novel microwave-assisted approach for the one-pot Cu(I)-catalyzed A3-coupling/decarboxylative coupling (PA2-coupling) of a propiolicacid, an aldehyde, and an amine, resulting in the formation of diversely substituted 1,4-diamino-2-butynes,is described. It is noteworthy that this new multicomponent coupling provides an efficient access to introduce alkyl and aryl group at the 1,4-position of the
Copper(I)-Catalyzed Deacetylenative Coupling of Propargylic Amines: An Efficient Synthesis of Symmetric 1,4-Diamino-2-butynes
作者:Yongeun Kim、Hiroyuki Nakamura
DOI:10.1002/chem.201102710
日期:2011.11.4
Deacetylenativecoupling: Propargylicamines undergo copper‐catalyzed deacetylenativecoupling to give the symmetric 1,4‐diamino‐2‐butynes. In the presence of a base, the Glaser‐type homocoupling takes place, whereas in the absence of a base the deacetylenativecoupling takes place (see scheme).