[P:1]([Cl:5])(Cl)([Cl:3])=[O:2].[CH2:6]([CH:13]([CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH3:24])[CH2:14][OH:15])[CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12].C(N(CC)CC)C.Cl.C(N(CC)CC)C>C1(C)C=CC=CC=1>[CH2:6]([CH:13]([CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH3:24])[CH2:14][O:15][P:1]([Cl:5])([Cl:3])=[O:2])[CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12]With nitrogen substitution, 540 ml of toluene and 138.0 grams (0.9 moles) of phosphorus oxychloride were added and cooled to −10 degrees C. To this mixture, a solution of 243.5 grams (0.9 moles; 1.0 in molar ratio) of 2-heptylundecanol and 91.1 grams (0.9 moles) of triethylamine was dripped, and the mixture was reacted for 12 hours at 0 degrees C. The mixture was then heated to 25 degrees C., and a triethylamine hydrochloride was. removed by filtering to obtain 1003.9 grams of a toluene solution of (2-heptylundecyl)dichlorophosphate (34.7% in concentration).
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