| 摘要 |
PURPOSE:To obtain a compound useful as a ballast component, active site substituting component, etc., of a photographic coupler in high purity and high yield at a low cost, by reacting an alkoxybenzene compound with sulfur chloride in the presence of a silicon compound, followed by reduction thereof. CONSTITUTION:A compound expressed by formula I (R1 represents alkyl; R2 represents H or alkyl; R3 represents alkyl or alkoxyl) is reacted with sulfur chloride in a solvent such as chloroform in the presence of a silicon compound (example; silicon dioxide) at 0-150 deg.C, preferably 40-80 deg.C to obtain a compound expressed by formula II (X is >=2 integer). Then the product is reduced by using zinc and an acid to obtain the aimed substance expressed by formula III. The reaction is carried out by using 0.1-2mol sulfur chloride and 0.001-1mol silicon compound based on 1mol compound expressed by formula I. |
