Copper-catalyzed synthesis of α,β-unsaturated acylamides via direct amidation from cinnamic acids and N-substituted formamides
作者:Hong Yan、Hailong Yang、Linhua Lu、Defu Liu、Guangwei Rong、Jincheng Mao
DOI:10.1016/j.tet.2013.06.078
日期:2013.9
A highly effective synthesis of α,β-unsaturated acylamides is reported for the first time via copper-catalyzed direct amidation between readily available cinnamic acids and N-substituted formamides. The protocol was easily accessible and practical.
Metallophosphite-Catalyzed Asymmetric Acylation of α,β-Unsaturated Amides
作者:Mary R. Nahm、Justin R. Potnick、Peter S. White、Jeffrey S. Johnson
DOI:10.1021/ja056018x
日期:2006.3.1
The l-menthone-derived TADDOL phosphite 6b catalyzes highly enantioselective conjugate additions of acyl silanes to α,β-unsaturated amides. p-Methoxybenzoyl cyclohexyldimethylsilane adds to a variety of N,N-dimethyl acrylamide derivatives in the presence of the lithium salt of 6b. In many instances the α-silyl-γ-ketoamide product undergoes facile enantioenrichment (to 97−99% ee) upon recrystallization
A NOVEL SYNTHESIS OF β-ARYL-α,β-UNSATURATED AMIDES
作者:Hong-Jun Ren、Yan-Guang Wang
DOI:10.1081/scc-100104004
日期:2001.1.1
A new simple method for the efficient synthesis of β-aryl-α,β-unsaturatedamides has been developed. The route involves nickel-catalyzed oxidation of benzyl alcohol, followed by Aldol-type condensation with N,N-dimethylacetamide in one step.
A facile and convenient protocol for the synthesis of cinnamides from cinnamic acids and tetraalkylthiuram disulfides under metal and additive free conditions has been achieved. This method allows the efficient coupling of diverse cinnamic acids with tetraalkylthiuram disulfides through a simply mixing operation.