Metal carbonyl chemistry. Part II. The reaction of phenyl- or methyl-manganese carbonyl with butadiene
Abstract
Methyl- or phenyl-manganese carbonyl react with butadiene to give 1 : 1 adducts, which are shown, by p.m.r. studies to be 3-acetyl-1-methyl-π-allyltetracarbonylmanganese and 3-benzoyl-1-methyl-π-allytetracarbonylmanganese, respectively. The latter complex undergoes novel reversible decarbonylation when heated, to give 5-methyl-2-phenyl-1-π-oxapentadienyltricarbonylmanganese.