[C:1]([OH:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[S:21](S([O-])=O)([O-:24])(=[O:23])=[O:22].[Na+].[Na+].[OH-].[Na+].C1C(C(OOC(C)(C)C)=O)=CC=CC=1>O.C(O)(C)C>[S:21]([CH:10]([CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18])[CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][C:1]([OH:20])=[O:19])([OH:24])(=[O:23])=[O:22]
Deionized water (150 ml), isopropyl alcohol (200 ml) and oleic acid (43.78 g, 0.155 mol) were placed in a 1.0 liter flask equipped with stirrer, additional funnel, reflux condenser, thermometer and a gas inlet tube. To the additional funnel was added a premix which contained 15.2 g (0.08 mol) of sodium metabisulfite (Na2S2O5) and 1.28 g of NaOH in 55 g of water. The whole device was bubbled gently with nitrogen. After heating to reflux (82° C.), a small portion of t-butyl perbenzoate (out of total amount of 0.5 g, 2.5 mmol) was added to the flask. Then the Na2S2O5/NaOH premix was added through the addition funnel continuously over the course of five hours. The remaining t-butyl perbenzoate was also added in portions during this time.
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