Stoikov I.; Yantemirova A.; Nosov R.; Julmetov A.; V. Klochkov V.; Antipin I.; Konovalov A.
(2011)
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 ...