References
- Ito , Y. , Inubushi , Y. and Saegusa , T. Tetrahedron Lett. , 1974 1283
- Brunken , J. and Bach , G. 1956 . Chem. Ber. , 89 : 1363
- Skaric , V. , Gaspert , B. and Jerkunica , I. 1966 . Croat. Chem. Acta. , 38 : 1
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- γ-N-(N'-tert-butyliminoformyl)butyrolactam [ir (neat, cm−1) : 1720 1650 and nmr (CDCl3, TMS) : δ 8.30 (s, 1H), 3.72 (t, 2H), 2.55 (t, 2H), 2.1 (m, 2H), 1.2 (s, 9H)] was prepared by our new reaction, i.e., the reaction of γ-butyrolactam with tert-butyl isocyanide in the presence of Cu2O