Portal de Periódicos da CAPES

Pyrrolidine-based chiral pyridinium ionic liquids (ILs) as recyclable and highly efficient organocatalysts for the asymmetric Michael addition reactions

2007; Elsevier BV; Volume: 49; Issue: 7 Linguagem: Inglês

10.1016/j.tetlet.2007.12.024

1873-3581

Bukuo Ni, Qianying Zhang, Allan D. Headley,

Analytical Chemistry and Chromatography

A novel series of pyrrolidine-based chiral pyridinium ionic liquids (ILs) have been developed by using commercially available (S)-(2-aminomethyl)-1-N-Boc-pyrrolidine. These chiral ILs have been found to be recyclable and efficient organocatalysts for the asymmetric catalytic Michael addition reactions of ketones to nitroolefins with high yields, high enantioselectivies, and diastereoselectivies.