... structures,4 we have been examining the use of fluorosulfuric acid as a reagent in organic synthesis. ... G. A.; Hogeveen, H.; van Kruchten, EM G. A.; Kirmse, W. In Topics in Current Chemistry; Springer-Verlag ... (b) Dytnerski, D.; Ranganayakulu, K.; Singh, BP; Sorensen, T. S. J. Org. ...