An efficient synthesis of (5S,12S)-diHETE was realized by a Pd-Cu catalysed coupling of the chiral synthons 3 and 4 which were easily obtained by the kinetic resolution of the corresponding racemates using the Sharpless reagent.
Weakly ligated palladium complexes PdCl2(RCN)2 in piperidine: versatile catalysts for Sonogashira reaction of vinyl chlorides at room temperature
作者:Mouâd Alami、Benoit Crousse、Fabiola Ferri
DOI:10.1016/s0022-328x(00)00909-8
日期:2001.4
Copper iodide and weakly ligated palladium complexes PdCl2(RCN)(2) (R = Ph, Me) catalyzed efficiently the coupling reaction of vinyl chlorides with 1-alkynes in the presence of piperidine to give the corresponding conjugated enynes in good to excellent yields. The reaction takes place rapidly and cleanly at room temperature. Application to the synthesis of terbinafine which exhibits strong antimycotic activity has been realized. (C) 2001 Elsevier Science B.V. All rights reserved.