Yapuri, Umanadh published the artcileLigand-free nano copper oxide catalyzed cyanation of aryl halides and sequential one-pot synthesis of 5-substituted-1H-tetrazoles, Related Products of isoxazole, the publication is Tetrahedron Letters (2013), 54(35), 4732-4734, database is CAplus.
An expedient and sequential one-pot synthesis of 5-substituted-1H-tetrazoles via [2+3] cycloaddition of aryl nitriles with sodium azide is reported. The required aryl nitriles were synthesized via the nano-copper oxide promoted cyanation of aryl iodides generated in situ.
Tetrahedron Letters published new progress about 2251-79-8. 2251-79-8 belongs to isoxazole, auxiliary class Trifluoromethyl,Fluoride,Benzene, name is 5-(4-(Trifluoromethyl)phenyl)-1H-tetrazole, and the molecular formula is C13H16O2, Related Products of isoxazole.
Referemce:
https://en.wikipedia.org/wiki/Isoxazole,
Isoxazole | C3H3NO – PubChem