17 2019 2020-10-09 10.1134/S1070363219020051 The structure of 5,5-bis(bromomethyl)-2-methyl-2-phenyl-1,3-dioxane 1 has been studied by means of 1H and 13C NMR spectroscopy as well as X-ray diffraction analysis. The molecules of compound 1 exist in the chair conformation with the axially oriented phenyl group. The computer simulation using DFT approximation at the PBE/3ξ level has revealed the route of interconversion of the ring and the optimal conformation of the phenyl group corresponding to the data of X-ray diffraction analysis. https://repo.bashgmu.ru/publication/238 https://repo.bashgmu.ru/files/239