Answers are grounded in this paper and cite their sources.
Conjuring with conjugation: catalysis by ruthenium-allenylidene complexes has been observed for the conversion of tin hydrides into distannanes and dihydrogen. Alkyne or alkene groups (R) in conjugation with an aromatic ring are required for catalytic activity, providing an unusual example of control of metal-centered reactivity by a remote substituent.
No takes yet. Share an insight, caveat, or question.
Maddock et al. (2001) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: