Mostafa Karimkoshteh

[ 1 ] - Nano SiO2/H2SO4 as catalyst for the Beckmann rearrangement and deoximation of aldoximes

Nano silica-H2SO4 is an efficient and mild catalysis system for the regeneration of aldehyde from aldoximes. Ketoximes are converted to amides by Beckmann rearrangement in the presence of nano silica-H2SO4. The reactions are carried out in solvent-free conditions under microwave irradiation (600 W) within 50-120 sec in good yields.

[ 2 ] - One-Pot Reduction of Aromatic Carboxylic Acid to Alcohol by SiO2@FeSO4 Nano Composite at Solvent-free Condition

Application of SiO2@FeSO4 nanocomposite as a new nanocatalyst in reduction area was investigated. Carboxylic acid simple and convenient reduction to alcohol by 0.75 mol of the nanocomposite, 3 mol sodium borohydride (NaBH4) as reduction reagent under a solvent-free condition at 30-65 min. The reaction happens in two stages - first to form an aldehyde and the...

[ 3 ] - Nano SiO2/H2SO4 as catalyst for the Beckmann rearrangement and deoximation of aldoximes

Nano silica-H2SO4 is an efficient and mild catalysis system for the regeneration of aldehyde from aldoximes. Ketoximes are converted to amides by Beckmann rearrangement in the presence of nano silica-H2SO4. The reactions are carried out in solvent-free conditions under microwave irradiation (600 W) within 50-120 sec in good yields.