von Braun Amide Degradation

H. von Pechmann, Ber. 33, 611 (1900); J. von Braun, ibid. 37, 3210 (1904).

Mechanistic study: B. A. Phillips et al., Tetrahedron 29, 3309 (1973). Application to N-t-butylamides: R. B. Perni, G. W. Gribble, Org. Prep. Proced. Int. 15, 297 (1983).