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Synlett 1990; 1990(10): 594-596
DOI: 10.1055/s-1990-21177
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Convenient Transformation of Carbonyl Compounds via Their Hydrazones into gem-Difluoro Compounds with N-Bromosuccinimide/Pyridinium Poly(hydrogen fluoride) or Poly-4-vinyl-pyridinium Poly(hydrogen fluoride)1

G. K. Surya Prakash* , V. Prakash Reddy, Xing-Ya Li, George A. Olah
  • *Donald P. and Katherine B. Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, USA
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Publication Date:
08 March 2002 (online)

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In situ generated bromine monofluoride (BrF) from N-bromosuccinimide/pyridinium poly(hydrogen fluoride) or poly-4-vinylpyridinium poly(hydrogen fluoride) reacts with hydrazones to give the corresponding gem-difluoro compounds (8 examples) in satisfactory yield.