Site of ring opening of an asymmetric cyclopropene with iron carbonyls: the X-ray crystal structure of a vinylketen–iron tricarbonyl complex

Abstract

The structure of the vinylketen–iron tricarbonyl derivative C₆H₁₀COFe(CO)₃ obtained from 1,3,3-trimethylcyclopropene and Fe₃(CO)₁₂ or preferably Fe₂(CO)₉ has been shown by X-ray crystallography to be 2,4-dimethylpenta-1,3-dien-1-one(tricarbonyl)iron.