title: Cobalt(III) porphyrin catalyzed aza-Diels-Alder reaction.
abstract: An efficient protocol for the aza-Diels-Alder reaction of electron-deficient 1,3-dienes with unactivated imines in the presence of a cationic cobalt(III) porphyrin complex was developed. The transformation proceeded smoothly to afford the desired piperidine scaffold within 2 h at ambient temperature. Highly chemoselective cycloaddition of imines with dienes in the presence of a variety of carbonyl compounds was also demonstrated.
authors.affiliation: Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
authors.forename: Ryota
authors.initials: R
authors.lastname: Wakabayashi
authors.forename: Takuya
authors.initials: T
authors.lastname: Kurahashi
authors.forename: Seijiro
authors.initials: S
authors.lastname: Matsubara
mesh_terms: D001372:Aza Compounds / Q000737:chemistry*; D002384:Catalysis; D003035:Cobalt / Q000737:chemistry*; D020650:Combinatorial Chemistry Techniques; D008665:Metalloporphyrins / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D001372:Aza Compounds; D008665:Metalloporphyrins; D003035:Cobalt