ChemInform Abstract: Copper(II)-Catalyzed C—C Bond-Forming Reactions of α-Electron-Withdrawing Group-Substituted Ketene S,S-Acetals with Carbonyl Compounds and a Facile Synthesis of Coumarins.

Copper(II)-Catalyzed CC Bond-Forming Rea

Copper(II)-Catalyzed CC Bond-Forming Reactions of α-Electron-Withdrawing Group-Substituted Ketene S,S-Acetals with Carbonyl Compounds and a Facile Synthesis of Coumarins

✍ Hong-Juan Yuan; Mang Wang; Ying-Jie Liu; Qun Liu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 169 KB 👁 1 views

A new catalytic C À 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