Sato, Masayuki published the artcileReaction of 2,2,6-trimethyl-1,3-dioxin-4-one with isoquinolinium and pyridinium ylides, Name: 1-(Cyanomethyl)pyridin-1-ium chloride, the publication is Chemical & Pharmaceutical Bulletin (1982), 30(12), 4359-64, database is CAplus.
The reactions of diketene-acetone adduct [2,2,6-trimethyl-1,3-dioxin-4-one (I)] with heterocyclic ylides were studied. Heating I with isoquinolinium bis(ethoxycarbonyl)methylide gave pyrroloisoquinoline II (R = CO2Et). Similarly, isoquinolinium cyano(ethoxycarbonyl)methylide and phenacylide gave pyrroloisoquinolinecarbonitrile III and II (R = Bz), resp. Isoquinolinium dicyanomethylide reacted with I to give bis(methyloxooxazinyl)methylide IV. Pyridinium ylides similarly reacted with I to give indolizines and oxazinylmethylides.
Chemical & Pharmaceutical Bulletin published new progress about 17281-59-3. 17281-59-3 belongs to pyridine-derivatives, auxiliary class Pyridine,Nitrile,Salt, name is 1-(Cyanomethyl)pyridin-1-ium chloride, and the molecular formula is C7H7ClN2, Name: 1-(Cyanomethyl)pyridin-1-ium chloride.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem