Keywords
thiacalix[4]arene; synthesis; conformation; extraction
Abstract
1,2-Alternate p-tert-butylthiacalix[4]arene bearing at the lower rim 1,2-positioned acetamide fragments reacts with ethyl bromoacetate to give mono-O-alkylation product when Na2CO3 is used as a base and O,O′,N,N′-tetraalkylation one in the case of K2CO3.
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