Di. Deltsova et Np. Gambaryan, INTERACTION OF RFLUOROBUTYL-3,3-DI(PERFLUOROMETHYL)-2-AZIRIDINONE WITH WEAK NUCLEOPHILES, Russian chemical bulletin, 42(2), 1993, pp. 333-336
The title perfluoro-alpha-lactam (1) was found to react with N,N-dimet
hylformamide to give initially a betaine (2) which undergoes ring enla
rgement to produce the isomeric dimethylamino-3,4,4-tri(perfluoroalkyl
)substituted 5-oxazolidone (3). Related betaines were also obtained on
reaction of 1 with pyridine, quinoline, benzalaniline, and p-dimethyl
aminobenzaldehyde.