The interaction of ptertbutylthiacalix[4]arene with N,Ndiethylchloroacetamide was stud ied in the presence of alkali metal carbonates in acetone. Three stereoisomers, viz., cone, partial cone, and 1,3alternate, of the tetraamide derivative of thiacalixarene substituted at the lower rim were synthesized selectively using the template effect of alkali metal cations, as well as a complex of the 1,3alternate stereoisomer with potassium chloride. ... إقراء المزيد

Thiacalix[4]arenes mono, 1,3di, tri, and tetrasubstituted at the lower rim, including those containing different substituents, were synthesized by the method based on the ability of the phenacyl moiety to serve as the protecting group, as well as to be involved in transalkylation إقراء المزيد