[SH:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][CH:9]=1)[CH:5]=[O:6].[OH:10][CH2:11][C:12]1[CH:13]=[C:14]([CH:17]=[CH:18][CH:19]=1)[CH2:15]Br.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[OH:10][CH2:11][C:12]1[CH:13]=[C:14]([CH:17]=[CH:18][CH:19]=1)[CH2:15][S:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][CH:9]=1)[CH:5]=[O:6]200 mg of 3-mercaptobenzaldehyde was dissolved in 6 ml of dimethylformamide, and 291 mg of 3-hydroxymethylbenzyl bromide and 402 mg of potassium carbonate were added. The mixture was stirred for 3 hours at room temperature. The solvent was evaporated, water and ethyl ether were added to the residue to extract it. The extract was worked up in a customary manner, and purified by silica gel column chromatography [Wakogel C-200, 10 g; eluting solvent: hexane/ethyl acetate=2/1] to give 190 mg (yield 51%) of 3-[3-(hydroxymethyl)benzylthio]benzaldehyde as a pale yellow oil.
Loading…
