Boosting main group catalysts by just a pinch of Fe0

We found that one of the best group 2 metal hydrogenation catalysts is the combination Ba0 / BaH2. Activities for hydrogenation of benzene-to-cyclohexane can be even boosted further by by the combination Fe0 / BaH2. In fact, any main group catalyst is accelerated by “just a pinch of iron”! We propose interplay between a heterogeneous Fe0 catalyst (activating benzene) and a main group metal hydride complex (attacking benzene).

Nature Commun.  2022, 3210
Teaming up main group metals with metallic iron to boost hydrogenation catalysis

Angew. Chem., Int. Ed. 2021, 60, 4252
Metallic barium: a versatile and efficient hydrogenation catalyst
DOI: 10.1002/anie.202014326