Aitov, I. A. published the artcileReaction of quinolinium salts with 2-cyano-2-(ethoxymethylene)acetanilide, Application of 1-Ethyl-2-methylquinolin-1-ium iodide, the publication is Zhurnal Organicheskoi Khimii (1994), 30(2), 291-4, database is CAplus.
Reaction of quinolinium halides I (R = Me, Et, allyl; R1 = H, Me; X = I, Br) with EtOCH:C(CN)CONHPh (II) in the presence of Et3N gave merocyanines III in 16-79% yield. Reaction of phenacylquinolinium bromides IV (R2 = H, Cl, Br) with II gave merocyanines V and inner salts VI.
Zhurnal Organicheskoi Khimii published new progress about 606-55-3. 606-55-3 belongs to iodides-buliding-blocks, auxiliary class Quinoline,Salt, name is 1-Ethyl-2-methylquinolin-1-ium iodide, and the molecular formula is C12H14IN, Application of 1-Ethyl-2-methylquinolin-1-ium iodide.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com