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4. ChemInform Abstract: Efficient Selective Formation of C—C Single Bonds and C=C Double Bonds by NBS-Promoted Oxidative Coupling of β-Keto Esters

Author

Sheng-Li Hu, Ai-Hua Chen, Guodong Yin, Anxin Wu, and Zhi-Guo Wang

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, Double bond, chemistry, embryonic structures, High selectivity, food and beverages, Single bond, Oxidative coupling of methane, General Medicine, Methylene, Medicinal chemistry
Abstract

A new application of NBS, which results in the oxidative coupling of β‐keto esters to selectively form C‐C single and C˭C double bonds, can be controlled by the amount of NBS and t‐BuOK employed. This methodology adds a new entry to C‐C single and C˭C double‐bond formation between active methylene groups under mild conditions with high selectivity.

Published
2008
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5. ChemInform Abstract: Highly Efficient and Clean Method for Direct α-Iodination of Aromatic Ketones

Author

Yuanjiang Pan, Anxin Wu, Sheng-Li Hu, Guodong Yin, Nengfang She, and Meng Gao

Subjects
Reaction conditions, Reaction mechanism, chemistry.chemical_compound, Chemistry, Aromatic ketones, Oxide, chemistry.chemical_element, Halogenation, Organic chemistry, General Medicine, Iodine, Copper
Abstract

Under neutral reaction conditions, aromatic ketones were transformed into the corresponding α-iodo ketones in high yields by the combination of copper(II) oxide and iodine. The reaction mechanism showed that copper(II) oxide played multiple roles through random self-sorting.

Published
2008
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