Molecular and Crystal Structures of Ethyl-2-Amino-2-Bis(3,5-di- Tert -Butyl-4-Hydroxybenzyl)Ethanoate. Hydrogen Bonds in the Crystals of Sterically Hindered Phenols

Ethyl-2-amino-2-bis(3,5-di- tert- butyl - 4-hydroxybenzyl)ethanoate is prepared, its molecular and crystal structures are studied. The H-bond system in the crystals of compounds containing sterically hindered phenolic groups is analyzed. It is shown that a disproportion of proton-donor and proton-accepting groups in crystals may lead to the formation of an H-bond system in which hydroxyl and amino groups are not involved in hydrogen bonding.