In heterogeneous catalysis, the catalyst is in a different phase from the reactants. SDS of cas: 497-25-6, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 497-25-6, name is Oxazolidin-2-one. In an article，Which mentioned a new discovery about 497-25-6
1,3-Dipolar cycloaddition of N-substituted dipolarophiles and nitrones: Highly efficient solvent-free reaction
(Chemical Equation Presented) New isoxazolidines were synthesized in good to excellent yields by 1,3-dipolar cycloaddition of N-vinylamide dipolarophiles and nitrones. Strikingly, solvent-free conditions gave high conversion and yields, shortened reaction time, and minimized degradation products. N-Vinyloxazolidin-2-one and its analogues used in these cycloaddition reactions were conveniently prepared in excellent yields by a modified version of Buchwald’s one-step copper-catalyzed vinylation using vinyl bromide. From the adducts, a two-step access to various unsymmetric aspartate derivatives was also described.
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Reference：
Oxazolidine – Wikipedia,
Oxazolidine | C3H1051NO – PubChem