Hydrogen peroxide and ferrous sulfate react to produce hydroxyl radical (HO·), as reported in 1894 by English chemist H. J. H. Fenton. When tert-butyl alcohol is treated with HO· generated this way, it affords a crystalline reaction product X, mp 92 (C, which has these spectral properties:
MS: heaviest mass peak is at m/z 131
IR: 3620, 3350 (broad), 2980, 2940, 1385, 1370 cm-1
1H NMR: sharp singlets at δ 122, 1.58, and 2.95 (6:2:1 area ratio)
13C NMR: δ 28 (CH3), 35 (CH2), 68 (C)
Draw the structure of X and write a mechanism for its formation.