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Report | Regular issue | Vol 9, No. 7, 1978, pp.849-852
Published online, 1st January, 1970
DOI: 10.3987/R-1978-07-0849
The Reduction of Azafluorenones

Krystian Kloc, Jacek Mlochowski,* and Zdzislaw Szulc

*Institute of Organic and Polymer Technology, Technical University of Wroclow, 50-370 Wroclaw, Poland

Abstract

Treatment of 1- and 4-aza- as well as 1,5-, 1,8-, 2,5-, and 4,5-diazafluorenones with hydrazine hydrate at 160-170 °C led to azafluorenes in the yield 33 - 90%. In the case of 4-aza-, 2,5- and 4,5-diazafluorenone, the dimerization products, 9,9’-bisazafluorenes were also formed under reduction conditions.