Efficient reductions of various nitroarenes with scrap automobile catalyst and NaBH4

From Waste to Green Applications: The Use of Recovered Gold and Palladium in Catalysis

“…However, since there are other valuable base and precious metals present in spent TWCs that could be recovered during leaching, the economic viability of this approach remains unclear. One example of this strategy was described in 2015 by Genc and co-workers, who used a powdered waste TWC sample (PW-TWC) to promote the reduction of a broad range of nitroarenes [109]. The PW-TWC sample was subjected to multiple washes with acetone and water before being dried at 400 °C.…”

Continuous flow synthesis of menthol via tandem cyclisation–hydrogenation of citronellal catalysed by scrap catalytic converters

“…30 Furthermore, the direct applicability of SCATs in catalysis have been previously demonstrated in simple batch experiments. [31][32][33]…”

Magnetically Recyclable Metal–Organic Framework@Fe3O4 Composite‐Catalyzed Facile Reduction of Nitroarene Compounds in Aqueous Medium

“…In this context, NaBH 4 turns out to be the most popular reductant since it is commercially available and cheap. Meanwhile, a series of catalysts, particularly the heterogeneous catalysts, have been employed to activate the NaBH 4 . Despite the great advance in this field, the reported procedures still suffered some drawbacks such as long reaction time, poor recyclability of the catalysts as well as tedious work‐up.…”

“…Meanwhile, a series of catalysts, particularly the heterogeneous catalysts, have been employed to activate the NaBH 4 . [11][12][13][14][15][16][17][18] Despite the great advance in this field, the reported procedures still suffered some drawbacks such as long reaction time, poor recyclability of the catalysts as well as tedious work-up.…”