Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Tafiya: Bayan dumama amine na farko tare da gishirin N-2,4-dinitrophenyl-pyridinium (2), ƙara amine yana haifar da buɗe zoben pyridinium. Additionarin amine na biyu yana haifar da maye gurbin 2,4-dinitroaniline (5) da kuma samar da gishirin König (6a da 6b). Trans-cis-trans isomer na König gishiri (6a) na iya amsawa ta hanyar ko dai sigmatropic rearrangement ko nucleophilic ƙari na zwitterionic tsaka-tsaki don ba da tsaka-tsakin tsaka-tsaki (7). An ba da shawarar wannan ya zama matakin ƙayyade ƙimar. Bayan canja wurin proton da kawar da amine, ana samar da ion pyridinium da ake so (9).  Tambaya: Menene ya faru idan ka ƙara amine na farko?
buɗewar zoben pyridinium