101237-26-7Relevant academic research and scientific papers
High Bronsted βnuc values in SNAr displacement. An indicator of the SET pathway?
Terrier, Francois,Mokhtari, Malika,Goumont, Regis,Halle, Jean-Claude,Buncel, Erwin
, p. 1757 - 1763 (2007/10/03)
Nucleophilic substitutions of 4-chloro-7-nitrobenzofurazan (NBD-Cl) and 3-methyl-1-(4-nitrobenzofurazanyl)-imidazolium ions (NBD-Im+) with a series of 4-X-substituted anilines have beeen kinetically investigated in 70-30 (v/v) and 20-80 (v/v) H
Use of 4-nitro-2,1,3,-benzoxadiazole derivatives as dyes in colouring agents for keratin fibres
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, (2008/06/13)
The object of the present invention is the use of 4-nitro-2,1,3-benzoxadiazole derivatives of general formula (I) as dye in colorants for keratin fibers such as, for example, wool, silk, furs or hair and particularly human hair In formula (I) X denotes ox
Derivatization of Amines with 4-Substituted 7-Nitrobenzofurazans
Heberer, H.,Kersting, H.,Matschiner, H.
, p. 487 - 504 (2007/10/02)
Electrophilic derivatives of 4-nitro-benzofurazan with different reactivities were used to synthesize 28 new mono- and disubstituted 4-amino-7-nitrobenzofurazans 2b, 2d, 2f-2i, 2l, 2m-2n, 3b-3f, 3h-3j, 4c-4d, 4f-4k, 4m, 4o-4p.A reaction mechanism is proposed on the basis of the differences of the reactivities and a preliminary kinetic examination.The acid character of the N-H-function in monosubstituted compounds is demonstrated by means of spectroscopical investigation of pKa-values.Data from i.r., u.v./vis, and fluorescence studies are offered.
