A Magnetoclick Imidazolidinone Nanocatalyst for Asymmetric 1,3‐Dipolar Cycloadditions
作者:Sreenivasarao Pagoti、Debasish Dutta、Jyotirmayee Dash
DOI:10.1002/adsc.201300624
日期:2013.12.16
AbstractA 1,3‐dipolar azide–alkyne cycloaddition has been used to prepare a magnetic nanoparticle immobilized MacMillan catalyst that catalyzes the enantioselective 1,3‐dipolar cycloaddition between nitrones and α,β‐unsaturated aldehydes. The catalyst can be recovered and recycled for five consecutive runs without any significant loss in yields and diastereo‐ and enantioselectivities of the isoxazolidines.magnified image