[CH3:1][C:2]1[CH:7]=[C:6]([CH2:8]O)[CH:5]=[CH:4][N:3]=1.S(Cl)([Cl:12])=O.C(Cl)Cl.C(=O)(O)[O-].[Na+]>C(OCC)(=O)C>[Cl:12][CH2:8][C:6]1[CH:5]=[CH:4][N:3]=[C:2]([CH3:1])[CH:7]=1(2-Methyl-pyridin-4-yl)-methanol (40 mg, 0.33 mmol) described in Manufacturing Example 47-1-1, thionyl chloride (0.047 ml, 0.65 mmol) and methylene chloride (4.0 ml) were stirred for 5 minutes at 60° C. Sodium bicarbonate solution and ethyl acetate were added to separate the reaction solution, and the ethyl acetate layer was dried over sodium sulfate. The solvent was evaporated under a reduced pressure to obtain 4-chloromethyl-2-methyl-pyridine as a crude product.
Wird geladen…
