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Copper-Catalyzed Direct Trifluoromethylation of Propiolates: Construction of Trifluoromethylated Coumarins

✍ Scribed by Li, Yuewen; Lu, Yuan; Qiu, Guanyinsheng; Ding, Qiuping

Book ID
125959728
Publisher
American Chemical Society
Year
2014
Tongue
English
Weight
565 KB
Volume
16
Category
Article
ISSN
1523-7060

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## Abstract Potassium (trifluoromethyl)trimethoxyborate is introduced as a new source of CF~3~ nucleophiles in copper‐catalyzed trifluoromethylation reactions. The crystalline salt is stable on storage, easy to handle, and can be obtained in near‐quantitative yields simply by mixing B(OMe)~3~, CF~3