developed and used as recyclablecatalysts for the aza-Michael addition at room temperature without any organic solvent. [DABCO–PDO][OAc] was found to be the most efficientcatalyst, and the amount of catalyst was only 10 mol %. Various amines reacted with a wide range of α,β-unsaturated amides, smoothly affording target products in good to excellent yields within hours. Moreover, the catalyst could be reused
[ADPQ][CH3COO]: efficient and recyclable catalyst for aza-Michael addition of α, β-unsaturated compounds and amines under solvent-free conditions
作者:Xiaochong Gao、Ruichang Gao
DOI:10.1007/s11164-015-1950-4
日期:2015.11
The recyclable ionic liquid [ADPQ][CH3COO] has been used as catalyst for aza-Michael addition of amines to α, β-unsaturatedcompounds to produce β-amino compounds. The reactions were complete in a few hours with high yields. The ionic liquid can be recycled and reused six times without noticeable decrease of catalytic activity.