Synthetic Applications of the Carbanion with a Fluoroalkyl Group Generated by Palladium(0) Catalyst under Neutral Conditions
作者:Yuzo Komatsu、Toru Sakamoto、Tomoya Kitazume
DOI:10.1021/jo990463r
日期:1999.10.1
fluorine atom(s) are described. Palladium(0)-catalyzedallylation reactions under neutral conditions proceeded smoothly in the system where a methylene group is activated by fluoroalkyl and carbonyl groups. In the above systems, the 2,2,2-trifluoroethyl moiety has been introduced onto the allylic position without the release of fluoride. Further, palladium(0)-catalyzed heterocyclization was achieved
A one pot synthesis of α-trifluoromethyl unsaturated acids and derivatives via a [3,3]-sigmatropicrearrangement of allyl (or propargyl) fluorovinyl ethers is described.
A one pot synthesis of alpha-trifluoromethyl unsaturated acids via a [3,3]-sigmatropic rearrangement of allyl (or propargyl) fluorovinyl ethers is described. By proto- and iodolactonization. these acids lead to the corresponding trifluoromethylated lactones. (C) 2002 Elsevier Science B.V.. All rights reserved.