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Yu L.,Nanjing University | Yu L.,Yangzhou University | Yu L.,Jiangsu Yangnong Chemical Engineering Co. | Wang J.,Yangzhou University | And 3 more authors.
Chinese Journal of Organic Chemistry | Year: 2013

The diphenyldiselenide catalyzed oxidation of cyclohexene by hydrogen peroxide led to cyclohexane-1,2-diol with high conversion and selectivity. Compared with traditional metal catalyst, selenium catalysts are cheaper and less harmful to environment. This synthetic method is also clean and highly atom-economic. Therefore, this reaction is highly applicable. © 2013 Chinese Chemical Society & SIOC CAS. Source


Yu L.,Yangzhou University | Yu L.,Wenzhou University | Yu L.,Jiangsu Yangnong Chemical Engineering Co. | Wang J.,Yangzhou University | And 7 more authors.
Chinese Journal of Organic Chemistry | Year: 2014

Acrylonitrile (AN) is a cheap and accessible industrial material. Linear dimerization of acrylonitrile affords the skeleton of adiponitrile, which leads to hexamethylene diamine through further hydrogenation. Hexamethylene diamine is an important industrial intermediate with comprehensive applications and wide market requirement and is mainly applied in the synthesis of nylon 66. Therefore, linear dimerization of acrylonitrile is a very important organic reaction. Compared with the electrolytic process which has already been applied in industrial production, the catalyzed dimerization needs low energy consumption and low equipment requirements. Besides, the catalyzed dimerization of acrylonitrile may also afford the branched dimer 2-methyleneglutaronitrile, which is the important intermediate in the synthesis of bromothalonil. Although the market requirement of bromothalonil is not as huge as nylon 66, it is also one of the important chemical industrial products. However, currently, there was no systematic review on AN dimerization. Therefore, this review aims to reorganize and systematically describe the advances of catalyzed dimerization of acrylonitrile for reference of the related technicians in China, including the Ru-catalyzed dimerization, other metal-catalyzed dimerization and phosphorus-catalyzed dimerization. © 2014 Chinese Chemical Society & SIOC, CAS Source

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