Nowrouzi, Najmeh published the artcile4-(N,N-Dimethylamino)pyridinium acetate as a recyclable catalyst for the synthesis of 5-substituted-1H-tetrazoles, Product Details of C8H5F3N4, the publication is Tetrahedron Letters (2015), 56(5), 739-742, database is CAplus.
An efficient method for the synthesis of 5-substituted-1H-tetrazoles through the reaction of nitriles with sodium azide using 4-(N,N-dimethylamino)pyridinium acetate as a recyclable catalyst with ionic liquid character is described. The reactions proceed well at 100 °C and provide the corresponding tetrazoles in good to excellent yields. This method has the advantage of easy work-up of the product without the requirement of HCl. Mono [3+2] cycloaddition products were obtained from dicyanides via this method.
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 C8H5F3N4, Product Details of C8H5F3N4.
Referemce:
https://en.wikipedia.org/wiki/Isoxazole,
Isoxazole | C3H3NO – PubChem