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Unexpected Hydrobromic Acid-Catalyzed CC Bond-Forming Reactions and Facile Synthesis of Coumarins and Benzofurans Based on Ketene Dithioacetals

โœ Scribed by Hongjuan Yuan; Prof. Mang Wang; Yingjie Liu; Lili Wang; Dr. Jun Liu; Prof. Qun Liu


Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
279 KB
Volume
16
Category
Article
ISSN
0947-6539

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Copper(II)-Catalyzed CC Bond-Forming Rea
โœ Hong-Juan Yuan; Mang Wang; Ying-Jie Liu; Qun Liu ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 169 KB ๐Ÿ‘ 1 views

A new catalytic C ร€ C bond-forming reaction has been developed. Catalyzed by cheap and commercially available copper(II) bromide (CuBr 2 ; 10 mol%), the reactions of a-electron-withdrawing group (EWG)-substituted ketene S,S-acetals with aldehydes or ketones in acetonitrile at room temperature gave a