methylalumination /ˌmɛθɪləˌluːmɪˈneɪʃən/ noun1 •A chemical reaction involving the addition of a methyl group and an aluminum moiety to a substrate, typically an alkyne or alkene, resulting in the formation of organoaluminum compounds.Zirconium-catalysed methylalumination of the propargylic and homopropargylic species (111) is uniformly highly regio- and stero-selective; the resulting alanes (112) are versatile olefin synthons. — 1983 formsmethylaluminations