Bamberger Rearrangement
E. Bamberger, Ber, 27,1347,1548(1894)
H. J. Shine, Aromatic Rearrangements(Elsevier, New York, 1967) pp
182
G. Kohnstam et al., J. Chem. Soc. Perkin Trans. II 1984, 423
D. Johnston, D. Elder, J. Labelled Compd. Radiopharm.
25,1315(1988)
Also see Bischler-Triazine Synthesis