title: A new and efficient method for the selective olefination of aldehydes with ethyl diazoacetate catalyzed by an iron(II) porphyrin complex.
abstract: Olefination of aromatic and aliphatic aldehydes with ethyl diazoacetate was achieved in excellent yields with triphenylphosphine and catalytic amounts of iron(II) meso-tetra(p-tolyl)porphyrin. The reaction conditions are mild and the process is efficient and highly selective (>90%) for the synthesis of the trans-olefin isomer. Results of mechanistic studies are discussed.
authors.affiliation: Department of Chemistry, Iowa State University, Gilman Hall, Ames, Iowa 50011-3111, USA.
authors.forename: Gholam A
authors.initials: GA
authors.lastname: Mirafzal
authors.forename: Guilong
authors.initials: G
authors.lastname: Cheng
authors.forename: L Keith
authors.initials: LK
authors.lastname: Woo