1. 1H-NMR ([D6] DMSO): sp-(1), δ = 1.12 (s, 3 H), 2.96 (s, 3 H), 5.50 (s, 1 H), 6.39 (s, 2 H), 6.8–9.1 (m, 15 H); ap-(1), 1.81 (s, 3 H), 2.83 (s, 3 H), 4.40 (s, 2 H), 5.77 (s, 1 H), 6.6–8.5 (m, 15 H).
2. SN2 character of solvolyses of tert-butyl halides and of trifluoroacetolyses of secondary alkyl sulfonates