1257322-93-2Relevant academic research and scientific papers
Synthesis of (E)-diethyl 6,6′-(diazene-1,2-diyl)bis(5-cyano-2-methyl- 4-phenylnicotinates), a new type of 2,2′-azopyridine dyes
Da Silva, Daniel Botelho,Samadi, Abdelouahid,Infantes, Lourdes,Carreiras, María Do Carmo,Marco-Contelles, José
, p. 6278 - 6281 (2010)
An unexpected, but simple method for the efficient synthesis of new 2.2′-azopyridine dyes, such as (E)-diethyl 6,6′-(diazene-1,2-diyl) bis(5-cyano-2-methyl-4-phenylnicotinates) (2, 4, 6, 8, 10, and 12), based on the treatment of ethyl 6-amino-5-cyano-2-methyl-4-arylnicotinates (1, 3, 5, 7, 9, and 11) with NBS/benzoyl peroxide, is described. The X-ray diffraction analysis and the UV-vis absorption spectra of dye 2 are reported and discussed.
