S-N(H) reactions of 3-fluoronitroarenes with chloromethyl sulfone as the method for the construction of 6-fluoro-3-sulfonylindoles [Electronic resource] / G. A. Zhumabaeva, S. K. Kotovskaya, N. M. Perova, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2007. - Vol. 56, № 10. - P. 2048-2053. - URL: http://www.springerlink.com/content/tnp4811084618544/fulltext.pdf. - (Дата обращения: 26.10.2011)