New materials based on tubular nanodimensional structures 1.Synthesis,structural studies and determination of interproton distances in solutions of functionalized thiacalix[4]arenas according to NMR spectroscopic data (NOESY)

摘要

New derivatives of p-tert-butylthiacalix[4]arene were synthesized.The conformation of the macrocycles and interproton distances in the synthesized thiacalix[4]arenes in solutions were determined by NMR spectroscopy.p-tert-Butylthiacalix[4]arene distally disubstituted at the lower rim adopts the cone conformation,and the tetrasubstituted products are formed in the 1,3-alternate conformation.