P. Ashton, G. R. Brown, A. Foubister
Dec 17, 1993
Citations
0
Influential Citations
7
Citations
Journal
Tetrahedron Letters
Abstract
Abstract X-Ray crystallography and dynamic 1H NMR spectroscopy have revealed that 1,4,5,8-tetramethyl-, 1-bromomethyl-4,5,8-trimethyl-, and 1,8-bis(bromomethyl)-4,5-dimethyl-2,3,6,7-tetrabromonaphthalene — 3, 4, and 5, respectively — have severely distorted naphthalene nuclei in the solid state that also correspond to the gross conformations that occupy appreciable (ΔG‡∼16 kcal mol−1) energy wells in the solution state.