Reactions of NN′-bis-(2-isothiocyanatophenyl)-NN′-diformyl-1,2-diaminoethane (4), prepared by fission of 1,2-bis(benzimidazol-1-yl)ethane (3) with thiophosgene and base, are described with a variety of nucleophiles. Aliphatic diamines give rise to 16–20-membered rings. Some reactions of the 16-ring compound (8) are also described.
R. Hull, F. Hollywood and H. Suschitzky, J. Chem. Soc., Perkin Trans. 1, 1979, 3037 DOI: 10.1039/P19790003037
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