A facile and efficient two-step synthetic route to previously inaccessible 1,3-unsubstituted 2-imino-5-oxooctahydroimidazo[4,5-d]-imidazol-1-ium iodides has been developed using easily accessible thioglycolurils, MeI, and various primary amines, morpholine, or ethylene diamine. The structure of representative products and hydrogen-bonding pattern in their crystals have been investigated by X-ray diffraction.
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This work was supported by the Russian Science Foundation (project 17-73-10415).
The X-ray diffraction data have been collected at the Center for Molecular composition studies of A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences.
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Published in Khimiya Geterotsiklicheskikh Soedinenii, 2019, 55(2), 160–166
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Baranov, V.V., Yatsenko, E.L., Melnikova, E.K. et al. Efficient method for the synthesis of 1,3-unsubstituted 2-imino-5-oxooctahydroimidazo[4,5-d]imidazolium iodides based on thioglycolurils. Chem Heterocycl Comp 55, 160–166 (2019). https://doi.org/10.1007/s10593-019-02433-5
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DOI: https://doi.org/10.1007/s10593-019-02433-5