An Efficient Method for Knoevenagel Condensation Catalyzed by Tetrabutylammonium hexatungstate [TBA]2[W6O19] as Novel and Reusable Heterogeneous Catalyst
Davoodnia, Abolghasem;
synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry2012Vol. 42pp. 1022-1026