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
Regioselective Cu(I)-Catalyzed Tandem A<sup>3</sup>-Coupling/Decarboxylative Coupling to 3-Amino-1,4-Enynes
作者:Huangdi Feng、Denis S. Ermolat’ev、Gonghua Song、Erik V. Van der Eycken
DOI:10.1021/ol3006612
日期:2012.4.6
An efficient and novel copper-mediated protocol for the synthesis of 3-amino-1,4-enynes from glyoxylic acid, an amine, and an alkyne was developed. This new reaction involving two sequential C-C bond formations is air and moisture tolerant and proceeds via a tandem A(3)-coupling and a selective decarboxylative coupling.
KRESZE, G.;MUENSTERER, H., J. ORG. CHEM., 1983, 48, N 20, 3561-3564