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.
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.
AbstractReactions of benzaldehydes with excess N,N-dimethylacetamide at 140 °C in the presence of diethyl carbonate as dehydrating agent and a base gave (E)-N,N-dimethylcinnamamides in good yields. If hydroxybenzaldehydes are used as substrates the reaction is accompanied by alkylation. Graphical abstract
BENZOFURAN-4,5-DIONES AS SELECTIVE PEPTIDE DEFORMYLASE INHIBITORS
申请人:Djaballah Hakim
公开号:US20120071523A1
公开(公告)日:2012-03-22
The instant invention provides novel benzofuran-4,5-diones and pharmaceutical compositions thereof useful for inhibiting PDF and for treating proliferative and infectious diseases. Compounds may be selective for eukaryotic (e.g., human) PDF or prokaryotic PDF.