L. Yu. Ukhin, L. G. Kuz'mina, T. N. Gribanova, L. V. Belousova, E. N. Shepelenko, G. S. Borodkin, O. I. Dmitrieva, V. A. Podshibyakin, N. V. Stankevich, “An unusual acetylene–allene rearrangement in iodomethylates of cotarnine acetylene derivatives”, Mendeleev Commun., 31:2 (2021), 251–253