Penazines 유도체를 합성하기 위하여 nitrosoaniline 의 중간단계를 거친 후 여러 극성용매에서 합성을 시도하 였고 BSA/DMF 시스템에서 고수율의 phenazined를 얻을 수 있었다.
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.