Cj. Davies et al., RHODIUM-CATALYZED REARRANGEMENT OF 1,2-DIPHENYLHYDRAZINE TO O-SEMIDINE, Journal of the Chemical Society, Chemical Communications, (11), 1995, pp. 1177-1178
Rearrangement of 1,2-diphenylhydrazine occurs exclusively to o-semidin
e in the presence of a rhodium catalyst with o-semidine banding to rho
dium(I) as a bidentate ligand.