论文成果
A green and transition-metal-free light-mediated trifluoromethylation reaction of coumarins
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- 论文类型：期刊论文
- 发表时间：2018-10-01
- 发表刊物：JOURNAL OF FLUORINE CHEMISTRY
- 收录刊物：SCIE
- 文献类型：J
- 卷号：214
- 页面范围：42-47
- ISSN号：0022-1139
- 关键字：Trifluoromethylation; Coumarins; Photo-catalyzed; Transition-metal-free;
Acetone; Langlois reagent
- 摘要：A simple, metal- and oxidant-free photo catalysis strategy for the direct trifluoromethylation of coumarins with inexpensive sodium triflinate (Langlois reagent, CF3SO2Na) as the CF3 source under xenon lamp irradiation is described. The reaction proceeds under ambient conditions and affords the corresponding products in moderate yields. The acetone can be used as low-cost radical initiator to generate CF3 radicals from sodium triflinate efficiently.
