[OH:1][C:2]1[C:3]([CH3:12])=[N:4][CH:5]=[C:6]([CH:10]=[CH2:11])[C:7]=1[CH2:8][OH:9].C(=O)([O-])[O-].[K+].[K+].[CH2:19](Cl)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>CC(C)=O>[CH3:12][C:3]1[C:2]([O:1][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[C:7]([CH2:8][OH:9])[C:6]([CH:10]=[CH2:11])=[CH:5][N:4]=1To a mixture of 0.1 mole 3-hydroxy-4-hydroxymethyl-2-methyl-5-vinylpyridine in 500 ml. of acetone and 25 gm. potassium carbonate is added 0.11 mole of benzyl chloride. The reaction mixture is stirred overnight, filtered, and the acetone removed in vacuo to yield 2-methyl-3-benzyloxy-4-hydroxymethyl-5-vinylpyridine.
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