ISSN : 1226-0517(Print)
ISSN : 2288-9604(Online)
ISSN : 2288-9604(Online)
Journal of Korean Society for Imaging Science and Technology Vol.22 No.2 pp.29-37
DOI : https://doi.org/10.14226/KSIST.2016.22.02.06
DOI : https://doi.org/10.14226/KSIST.2016.22.02.06
Synthesis of substituted phenazines via N-aryl-2-nitrosoanilines as intermediates from nitroarenes
Abstract
Anions generated from primary arylamines react with substituted nitrobenzenes to form σH-adducts, which, under basic reaction conditions, undergo transformation to N-aryl-2-nitrosoamines. The substituted phenazines were furnished by the cyclization of N-aryl-2-nitrosoamines. The cyclization was promoted by N,O-bis(trimethylsilyl)acetamide (BSA) in aprotic solvents, by acetic acid and K2CO3/MeOH systems.