Answers are grounded in this paper and cite their sources.
During asymmetric cyanohydrin synthesis catalysed by vanadium(V)oxo(salen) complexes, the catalysts are reduced to vanadium(IV)oxo(salen) as determined by EPR spectroscopy; the reducing agent is cyanide which is oxidised to cyanogen via a non-radical mechanism.
No takes yet. Share an insight, caveat, or question.
Chechik et al. (2010) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: