Ultrasound-irradiated Michael addition of amines to ferrocenylenones under solvent-free and catalyst-free conditions at room temperature
作者:Jin-Ming Yang、Shun-Jun Ji、Da-Gong Gu、Zhi-Liang Shen、Shun-Yi Wang
DOI:10.1016/j.jorganchem.2005.03.030
日期:2005.6
A facile Michael addition of ferrocenylenones with aliphatic amines under ultrasound irradiation in the absence of solvent and catalyst at room temperature can afford 1-ferrocenyl-3-amino carbonyl compounds rapidly in high yields, which is also efficient in the aza-Michael reaction of other α,β-unsaturated carbonyl compounds such as chalcone, carboxylic ester, etc. However, aromatic amines do not undergo
在室温下不存在溶剂和催化剂的情况下,在超声辐射下,将二茂铁基烯酮与脂肪族胺轻松在迈克尔加成反应中,可以快速,高收率地快速获得1-二茂铁基-3-氨基羰基化合物,这在其他氮杂-迈克尔反应中也很有效α,β-不饱和羰基化合物,例如查尔酮,羧酸酯等。然而,芳族胺根本不进行共轭加成,并且在现有方法下的反应在长时间的反应后不会进行或以低收率进行。除了实验简单,通用性和选择性外,这种方法的优点是快速,对环境无害且成本较低,这将有助于绿色化学的发展。