Solvent-Free Michael Addition Between EMME and Secondary Amine under Focused Microwave Irradiation
作者:Ki-Won Kim、Hee-Jung Lee、Jeong-Im Jo、Tae-Woo Kwon
DOI:10.5012/bkcs.2010.31.5.1155
日期:2010.5.20
Microwave-assisted Michael reaction between EMME and various amines such as diphenylamine, 4-methyl-N-phenylbenzenamine, N-phenylnaphthalen-1-amine, dihexylamine, diisopropylamine, and 4-nitrobenzenamine were described. Solvent-free conditions on alumina as solid support in the presence of $K_2CO_3$ catalysts gave moderate to good yields (55 - 93%) of diethylmalonate analogues having enamine moieties under focused microwave irradiation.
介绍了微波辅助的 EMME 与各种胺(如二苯胺、4-甲基-N-苯基苯胺、N-苯基萘-1-胺、二己胺、二异丙基胺和 4-硝基苯胺)之间的迈克尔反应。在聚焦微波辐照下,以氧化铝为固体载体,在$K_2CO_3$催化剂存在下的无溶剂条件下,具有烯胺分子的二乙基丙二酸类似物的产率为中等到良好(55 - 93%)。