Abstract A novel method for the Michael reaction of indoles to α,β‐unsaturatedketones catalyzed by acidic ionic liquid is reported. We obtained the corresponding products in excellent yields in the presence of [hmim]HSO4. Development of this method has resulted in a new protocol for the synthesis of β‐indolylketones.
Magnetic polyoxometalates (POMs) are obtained by a simple sonication between functionalized magnetic nanoparticles and polyoxometalates. This material can be used not only as a highly active acid catalyst, but also as a catalyst support for chiral amines.
Kan war, Deepika; Rani, Rashmi; Agarwal, Jyoti, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2010, vol. 49, # 9, p. 1290 - 1299
作者:Kan war, Deepika、Rani, Rashmi、Agarwal, Jyoti、Peddinti, Rama Krishna