G. Ibar

Synthesis, Structure, and Cope Rearrangement of Some 3,7-Dicyano-1,5-dimethylsemibullvalenes.

K. Peters, E. Peters, H. Schnering, 1986 .

The degenerate Cope Rearrangement in 2,6‐Barbaralanedicarbonitrile

A. Freyer, H. Quast, L. M. Jackman, 1984 .