设计了一种由 2,3-二氯-5,6-二氰基-1,4-苯醌(DDQ)和NaNO2组成的复合催化剂,该催化剂在9,10-二氢蒽氧化脱氢生成蒽的反应中表现出很高的催化活性和选择性. 在120 ℃和1.3 MPa O2下反应 8 h, 9,10-二氢蒽转化率达到99%以上,蒽的选择性为99%. 采用红外光谱和核磁共振方法对催化氧化脱氢的反应历程进行了研究. 结果表明, 9,10-二氢蒽氧气氧化脱氢生成蒽的反应是通过DDQ/DDQH2和NO2/NO两个氧化还原对的电子传递来推动的,以DDQ/NaNO2为催化剂可以有效催化9,10-二氢蒽氧化脱氢生成蒽.
参考文献
[1] | Bautista FM;Campelo JM;Luna D;Marinas JM;Quiros RA;Romero AA .Screening of amorphous metal-phosphate catalysts for the oxidative dehydrogenation of ethylbenzene to styrene[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2007(26):611-620. |
[2] | Joshi BP;Sharma A;Sinha AK .Efficient one-pot, two-step synthesis of (E)-cinnmaldehydes by dehydrogenation-oxidation of arylpropanes using DDQ under ultrasonic irradiation[J].Tetrahedron,2006(11):2590-2593. |
[3] | Becker H;Bjork A;Adler E .[J].Journal of Organic Chemistry,1980,45(09):1596. |
[4] | Guanyu Yang;Yinfa Ma;Jie Xu .Biomimetic Catalytic System Driven by Electron Transfer for Selective Oxygenation of Hydrocarbon[J].Journal of the American Chemical Society,2004(34):10542-10543. |
[5] | Yang GY;Zhang QH;Miao H;Tong XL;Xu J .Selective organocatalytic oxygenation of hydrocarbons by dioxygen using anthraquinones and N-hydroxyphthalimide[J].Organic letters,2005(2):263-266. |
[6] | Zhou L P;Chen Y;Yang X M;Su Y L Zhang W Xu J .[J].Catalysis Letters,2008,125:154. |
[7] | Zhang QH;Chen C;Ma H;Miao H;Zhang W;Sun ZQ;Xu J .Efficient metal-free aerobic oxidation of aromatic hydrocarbons utilizing aryl-tetra halogenated N-hydroxyphthalimides and 1,4-diamino-2,3-dichloroanthraquinone[J].Journal of Chemical Technology & Biotechnology,2008(10):1364-1369. |
[8] | Wang XL;Liu RH;Jin Y;Liang XM .TEMPO/HCl/NaNO2 catalyst: A transition-metal-free approach to efficient aerobic oxidation of alcohols to aldehydes and ketones under mild conditions[J].Chemistry: A European journal,2008(9):2679-2685. |
[9] | Zengjian An;Xiulian Pan;Xiumei Liu .Combined Redox Couples for Catalytic Oxidation of Methane by Dioxygen at Low Temperatures[J].Journal of the American Chemical Society,2006(50):16028-16029. |
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