title: Organocatalytic oxidative dehydrogenation of dihydroarenes by dioxygen using 2,3-dichloro-5,6-dicyano-benzoquinone (DDQ) and NaNO2.
abstract: The oxidative dehydrogenation of dihydroarenes catalyzed by 2,3-dichloro-5,6-dicyano-benzoquinone(DDQ) and NaNO(2) with dioxygen is reported. The combination of DDQ and NaNO(2) showed high efficiency and high selectivity, compared with other benzoquinones and anthraquinones, e.g., >99% conversion of 9,10-dihydroanthracene with 99% selectivity for anthracene can be obtained at 120 degrees C under 1.3 MPa O(2) for 8 h. Excellent results were achieved in the oxidative dehydrogenation of variety of dihydroarenes.
authors.affiliation: State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China. zhangwei@dicp.ac.cn
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Ma
authors.forename: Lipeng
authors.initials: L
authors.lastname: Zhou
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Sun
authors.forename: Zhongtian
authors.initials: Z
authors.lastname: Du
authors.forename: Hong
authors.initials: H
authors.lastname: Miao
authors.forename: Jie
authors.initials: J
authors.lastname: Xu
mesh_terms: D000880:Anthraquinones / Q000737:chemistry; D016227:Benzoquinones / Q000737:chemistry*; D002384:Catalysis; D006859:Hydrogen / Q000737:chemistry*; D047028:Macrocyclic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D012977:Sodium Nitrite / Q000737:chemistry*; D013696:Temperature; D013997:Time Factors
chemical_list: D000880:Anthraquinones; D016227:Benzoquinones; D047028:Macrocyclic Compounds; C000928:dichlorodicyanobenzoquinone; D006859:Hydrogen; D012977:Sodium Nitrite; D010100:Oxygen