Rapid Fluorous Stille Coupling Reactions Conducted under Microwave Irradiation
作者:Mats Larhed、Masahide Hoshino、Sabine Hadida、Dennis P. Curran、Anders Hallberg
DOI:10.1021/jo970362y
日期:1997.8.1
Palladium-catalyzed fluorous Stille cross-coupling reactions with organic halides or triflates require only 90-120 s for completion when conducted under microwave irradiation. Comparable thermal reactions require about 1 day. Fourteen different coupling products were synthesized and isolated in good yields after three-phase extraction (FC-84, dichloromethane, water) and chromatography. The examples extend the scope of the fluorous Stille coupling with respect to both the tin and halide/triflate components. Applications in parallel synthesis are suggested.
Stille Couplings with Fluorous Tin Reactants: Attractive Features for Preparative Organic Synthesis and Liquid-Phase Combinatorial Synthesis