Methanesulfonic Acid → 2-(2-Hydroxy-3-decyl-5-methylphenyl)-2H-benzotriazole
Reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][C:3]=1[N:9]1[N:13]=[C:12]2[CH:14]=[CH:15][CH:16]=[CH:17][C:11]2=[N:10]1.CS(O)(=O)=O.[CH2:23]=[CH:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH3:32]>>[OH:1][C:2]1[C:7]([CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH3:32])=[CH:6][C:5]([CH3:8])=[CH:4][C:3]=1[N:9]1[N:13]=[C:12]2[CH:14]=[CH:15][CH:16]=[CH:17][C:11]2=[N:10]1Participants
4
Procedure
Using the general procedure of Example 1, 225 grams of 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole, 65 ml of methanesulfonic acid and 188 ml of 1-decene are heated at 160° C., for a 5-hour period during which time another 564 ml of 1-decene is gradually added to the reaction mixture. The mixture is then cooled and the product isolated by the method described in Example 1 to give 183 grams of the above-named product as a yellow liquid.