Synthesis and applications of fluorous silyl protecting groups with improved acid stability
摘要:
Fluorous alkoxysilyl protecting groups have been developed and evaluated for their acid stability. tert-Butyl-phenyl-1H,1H,2H,2H-heptadecafluorodecyloxysilyl (BPFOS) ethers in particular were found to be surprisingly acid stable and allow simple protection-purification-deprotection schemes by liquid-liquid extraction with FC72/CH3CN or by solid phase extraction with fluorous reverse phase silica gel. (C) 1999 Elsevier Science Ltd. All rights reserved.