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  • Silver-catalyzed C-H trifluoromethylation of arenes using trifluoroacetic acid as the trifluoromethylating reagent.

Silver-catalyzed C-H trifluoromethylation of arenes using trifluoroacetic acid as the trifluoromethylating reagent.

Organic letters (2014-12-18)
Guangfa Shi, Changdong Shao, Shulei Pan, Jingxun Yu, Yanghui Zhang
ABSTRACT

Direct trifluoromethylation of arenes using TFA as the trifluoromethylating reagent was achieved with Ag as the catalyst. This reaction not only provides a new protocol for aryl C-H trifluoromethylation, but the generation of CF3· from TFA may prove useful in other contexts and could potentially be extended to other trifluoromethylation reactions.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Trifluoroacetic acid, ≥99%, for protein sequencing
Sigma-Aldrich
Trifluoroacetic acid, ReagentPlus®, 99%
Sigma-Aldrich
Trifluoroacetic acid, puriss. p.a., suitable for HPLC, ≥99.0% (GC)
Sigma-Aldrich
Trifluoroacetic acid, suitable for HPLC, ≥99.0%