Abstract
New organosilicon derivatives of p-tert-butylthiacalix[4]arene with one or two ring fragments at the macrocycle lower rim were synthesized. The spatial structures of the resulting compounds were established by two-dimensional NMR spectroscopy. On going from the methyl substituents at the silicon atom to phenyl substituents, closure of the second silicon-containing ring is hampered because of steric hindrance in the reaction site.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 297–302, February, 2007.
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Stoikov, I.I., Mostovaya, O.A., Antipin, I.S. et al. Synthesis and spatial structure of novel organosilicon derivatives of p-tert-butylthiacalix[4]arene from two-dimensional NMR data. Russ Chem Bull 56, 307–312 (2007). https://doi.org/10.1007/s11172-007-0050-z
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DOI: https://doi.org/10.1007/s11172-007-0050-z