101321-62-4Relevant academic research and scientific papers
Unusual reaction of 4-nitrobenzofurazan with amines
Levinson, Feliks S.,Varganov, Roman V.,Zakiev, Marsel M.,Shakirova, Ilmira M.,Sheremetev, Aleksei B.,Dmitriev, Dmitry E.,Krivolapov, Dmitry B.,Litvinov, Igor A.,Sharafutdinova, Dilyara R.,Efremov, Yurii Ya.
body text, p. 329 - 331 (2009/05/27)
The treatment of 4-nitrobenzofurazan with secondary amines resulted in the formation of 4-amino-5,7-bis(dialkylamino)-benzofurazans, as established by X-ray diffraction analyses; this is the first example of SNH reaction with synchro
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.
