Abstract
The exchange of α-olefins (ethylene, propene, but-1-ene and pent-1-ene) and of β-olefins ( cis-butene and cis-pentene) has been studied on iron films at −37 and 0 °C in the presence of an excess of perdeuteropropene or perdeuteroethylene. While the exchange of the α-olefins is very fast, about 20 times faster than their isomerization, the exchange of the β-olefins may be considered as negligible. Whereas the exchange of the simplest molecules, ethylene propylene, may be considered as a simple exchange of all four and three vinylic hydrogens, respectively, in the case of but-1-ene and pent-1-ene the internal and terminal vinylic hydrogens seem to be differentiated and a multiple exchange takes place.
Published Version
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