Deyrup, J. A.; Gingrich, H. L. published the artcile< Cycloadditions of 4-oxazolin-2-ones>, Product Details of C4H5N3, the main research area is oxazolinone cycloaddition cyclopentadiene anthracene; chloranil cycloaddition oxazolinone; tetrazine pyridyl cycloaddition oxazolinone.
The 4-oxazolin-2-ones I (R = H, Ac, R1 = H; R = Ac, R1 = Ph) underwent cycloaddition reactions with a variety of cyclic unsaturated compounds, e.g. cyclopentadiene, o-chloranil, anthracene. E.g., I (R = Ac, R1 = H) with anthracene in o-xylene at 144° for 72 h gave 87% adduct II. Hydrolysis of II in refluxing alc. aqueous NaOH gave 74% amino alc. III.
Tetrahedron Letters published new progress about Cycloaddition reaction. 20744-39-2 belongs to class pyridazine, and the molecular formula is C4H5N3, Product Details of C4H5N3.
Referemce:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem