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Synthesis 1987; 1987(10): 870-872
DOI: 10.1055/s-1987-28106
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Geminal Bis-Onio Substitution at Trigonal Electron-Deficient Carbon

Robert Weiss* , Reinhard Roth
  • *Institut für Organische Chemie der Universität Erlangen-Nürnberg, D-8520 Erlangen, Henkestr. 42, West Germany
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Publication Date:
12 September 2002 (online)

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Geminal bis-onio substitution in systems with highly electrophilic trigonal carbon centers can be achieved by means of the reagent pair 4-dimethylaminopyridine/ trimethylsilyltriflate. Structural features of these novel electrophiles are discussed on the basis of spectroscopic and theoretical data.