title: Base-catalyzed efficient tandem [3 + 3] and [3 + 2 + 1] annulation-aerobic oxidative benzannulations.
abstract: An efficient synthesis of substituted benzenes via a base-catalyzed [3 + 3] aerobic oxidative aromatization of α,β-unsaturated carbonyl compounds with dimethyl glutaconate was reported. All the reactions were carried out under mild, metal-free conditions to afford the products in high to excellent yields with molecular oxygen as the sole oxidant and water as the sole byproduct. Furthermore, a more convenient tandem [3 + 2 + 1] aerobic oxidative aromatization reaction was developed through the in situ generation of the α,β-unsaturated carbonyl compounds from aldehydes and ketones.
authors.affiliation: Department of Chemistry, Northeast Normal University, Changchun, 130024, PR China.
authors.forename: Aboubacar
authors.initials: A
authors.lastname: Diallo
authors.forename: Yu-Long
authors.initials: YL
authors.lastname: Zhao
authors.forename: He
authors.initials: H
authors.lastname: Wang
authors.forename: Sha-Sha
authors.initials: SS
authors.lastname: Li
authors.forename: Chuan-Qing
authors.initials: CQ
authors.lastname: Ren
authors.forename: Qun
authors.initials: Q
authors.lastname: Liu
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D000468:Alkalies / Q000737:chemistry; D001555:Benzene Derivatives / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D007659:Ketones; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry
chemical_list: D000447:Aldehydes; D000468:Alkalies; D001555:Benzene Derivatives; D007659:Ketones; D010100:Oxygen