The reaction of [Ru(CHCH2)Cl(CO)(PPh3)2] with diazomethane provides the allyl complex [Ru(η3-CH2CHCH2)Cl(CO)(PPh3)2] which is also the product of the reactions of [RuHCl(CO)(PPh3)3] with either allene or propyne and which reacts subsequently with NaS2CNMe2 to provide [RuH(S2CNMe2)(CO)(PPh3)2] and allene.
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Hill et al. (1997) studied this question.