INTRAMOLECULAR<sub> </sub>INTERACTIONS<sub> </sub>OF<sub> </sub>N-(3,5-DI-<i>tret</i>-BUTYL-2-HYDROXYPHENYL)<sub> </sub>ACETAMIDE DERIVATIVES
<i>The methods of IR Fourier spectroscopy are adopted to study intramolecular interactions occurring in solutions of antivirally active derivatives of N-(3,5-di-tret-butyl-2-hydroxyphenyl)acetamide in CCl</i><sub><i>4</i></sub><i>. Analysis of IR spectra has shown that intramolecular hydrogen bonds O-H···О=С and N-H···O=C are formed in solutions of these compounds. The bonding force of O-H···О=С and N-H···O=C bonds and the direction of a conformation equilibrium shift between these two types of intramolecular interactions depend on the type of a carbonyl group substituent. The intramolecular O-H···О=С hydrogen bond is characteristic of highly active derivatives of N-(3,5-di-tret-butyl-2-hydrooxyphenyl)acetamide.</i>