3-Arylpropanoate Esters throughthe Palladium-Catalyzed Reaction of Aryl Halides with Acrolein DiethylAcetal
作者:Sandro Cacchi、Gianfranco Battistuzzi、Giancarlo Fabrizi、Roberta Bernini
DOI:10.1055/s-2003-39900
日期:——
The reaction of aryl halides with acrolein diethyl acetal in the presence of Pd(OAC) 2 , n-Bu 3 N, and n-Bu 4 NCl in DMF at 90°C affords ethyl 3-arylpropanoates. A variety of functional groups are tolerated in the aryl halides, including ether, aldehyde, ketone, ester, nitrile, and nitro groups. ortho-Substituents do not hamper the reaction. 3-Arylpropanoate esters were isolated in good to excellent
在 Pd(OAC) 2 、n-Bu 3 N 和 n-Bu 4 NCl 的存在下,芳基卤化物与丙烯醛二乙基缩醛在 DMF 中在 90°C 下反应,得到 3-芳基丙酸乙酯。芳基卤化物中可以容忍多种官能团,包括醚、醛、酮、酯、腈和硝基。邻位取代基不妨碍反应。3-芳基丙酸酯与许多中性、富电子和缺电子的芳基碘化物和缺电子的芳基溴化物以良好到优异的产率分离。中性和富含电子的芳基溴化物以中等产率得到所需的酯。