Organocatalytic oxidative dehydrogenation of dihydroarenes by dioxygen using 2,3-dichloro-5,6-dicyano-benzoquinone (DDQ) and NaNO2.
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.
Zhang
Wei
W
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, PR China. zhangwei@dicp.ac.cn
Ma
Hong
H
Zhou
Lipeng
L
Sun
Zhiqiang
Z
Du
Zhongtian
Z
Miao
Hong
H
Xu
Jie
J
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
D000880:Anthraquinones; D016227:Benzoquinones; D047028:Macrocyclic Compounds; C000928:dichlorodicyanobenzoquinone; D006859:Hydrogen; D012977:Sodium Nitrite; D010100:Oxygen