147021-87-2Relevant academic research and scientific papers
A useful methodology for the synthesis of 2-methyl-4-nitrobenzimidazoles
Tian,Grivas
, p. 1283 - 1286 (1992)
Cyclocondensation of 3-nitro-1,2-benzenediamines 2 with 2,4-pentanedione provides a convenient route for the preparation of 2-methyl-4-nitrobenzimidazoles 3. A discrepancy in the literature regarding the 5-chloro-, 5-methoxy- and 5-methyl derivatives of the title compounds is discussed.
Nitration of 5-Fluoro-2,1,3-benzoselenadiazoles, and the Synthesis of 4-Fluoro-3-nitro-, 4-Fluoro-6-nitro, 5-Fluoro-3-nitro-o-phenylenediamines and 3,4-Diamino-2-nitrophenols by Subsequent Deselenation
Tian, Wei,Grivas, Spiros,Olsson, Kjell
, p. 257 - 262 (2007/10/02)
Fuming nitric and concentrated sulfuric acids converted the title benzoselenadiazoles 1 and 8 into their 4- and/or 7-nitro derivatives.Unlike the m-fluoronitro substituted products 6 and 9, the o-fluoronitro substituted products 2 were accompanied by the
