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Synlett 1993; 1993(9): 691-693
DOI: 10.1055/s-1993-22574
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Simplified Preparation of α,α-Difluorodiphenylmethanes from Benzophenone 1,3-Dithiolanes with Sulfuryl Chloride and Pyridinium Polyhydrogen Fluoride1

G. K. Surya Prakash* , Dushyanthi Hoole, V. Prakash Reddy, George A. Olah
  • *Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, Los Angeles, CA 90089-1661, USA
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Publication History

Publication Date:
19 March 2002 (online)

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An improved method has been developed for the preparation of α,α-difluorodiphenylmethanes from the corresponding 1,3-dithiolanes which involves reaction with sulfuryl chloride or sulfuryl chloride fluoride and pyridinium polyhydrogen fluoride, in 86-95% yields.