Rh(I)-Catalyzed Reaction of Trifluoromethylketone N-Tosylhydrazones and Arylboronates

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• 作者：Zhikun Zhang ; Weizhi Yu ; Qi Zhou ; Tianjiao Li ; Yan Zhang and Jianbo Wang
• 刊名：Chinese Journal of Chemistry
• 出版年：2016
• 出版时间：May, 2016
• 年：2016
• 卷：34
• 期：5
• 页码：473-476
• 全文大小：322K
• ISSN：1614-7065

文摘

Rh(I)-Catalyzed synthesis of 1,1-difluoro-2,2-diarylalkenes from trifluoromethylketone N-tosylhydrazones and arylboronates is presented in this communication. This new synthetic method is based on the Rh(I)-carbene migratory insertion followed by β-fluoride elimination. In one particular case the protonation occurs instead of β-fluoride elimination, affording 2,2-diaryl trifluoroethane product.