Ring distortions in 2-methyl-2-t-butyl derivatives of 1, 3-dioxan, 1, 3-oxathian, and 1, 3-dithian
Abstract
The 100 MHz spectra of 2-[2H3]methyl-2-t-butyl derivatives of 1, 3-dioxan, 1, 3-oxathian, and 1, 3-dithian, and of 2-t-butyl-1.3-oxathian have been analysed by iterative computation. Application of the R value treatment of vicinal coupling constants shows that the C–C–C fragment in the 1, 3-dithian ring is the most distorted by the presence of the 2-axial methyl group.