Per-6-bromo-per-2,3-dimethyl-beta-cyclodextrin Per-6-bromo-per-2,3-dimethyl-beta-cyclodextrin, (D. Alker, P. R. Ashton, V. D. Harding, R. Königer, J. F. Stoddart, A. J. P. White, and D. J. Williams), Tetrahedron Lett. 1994, 35, 9091-9094. Full Text