An efficient and environmentally benign one-pot condensation of cyclic diketones, aldehydes naphthols was achieved with 1,4-diazabicyclo[2-2-2]octane supported on Amberlyst-15 as a novel catalyst, producing variety benzoxanthenones in good to excellent yields. The advantages this multicomponent reaction include the use heterogeneous solventless conditions simple methodology that is atom-economi...

In recent years, alternative methods to conventional synthesis of MOFs (metal-organic frameworks) have emerged due the problematic use solvents for both environment and human health. Here we present ZIFs (zeolitic imidazolate at high pressure by means a hydraulic press provided with heating mechanism. By optimization parameters such as temperature, time addition promotor NH4NO3, considerable in...