S. Rover et P. Wipf, Synthesis and applications of fluorous silyl protecting groups with improved acid stability, TETRAHEDR L, 40(31), 1999, pp. 5667-5670
Fluorous alkoxysilyl protecting groups have been developed and evaluated fo
r their acid stability. tert-Butyl-phenyl-1H,1H,2H,2H-heptadecafluorodecylo
xysilyl (BPFOS) ethers in particular were found to be surprisingly acid sta
ble and allow simple protection-purification-deprotection schemes by liquid
-liquid extraction with FC72/CH3CN or by solid phase extraction with fluoro
us reverse phase silica gel. (C) 1999 Elsevier Science Ltd. All rights rese
rved.