专利号:US-4999457-A 优先权日:1988-02-08 标 题:Process for the synthesis of 3-chloro-4-hydroxyacetanilide 发明人:FRUCHEY OLAN S 权利人:HOECHST CELANESE CORP 摘要:A novel process for the preparation of 3-chloro-4-hydroxyacetanilide in high yields is disclosed which involves reacting N-acetyl-para-aminophenol (APAP) with sulfuryl chloride (SO 2 Cl 2 ) as the chlorine source and liquid SO 2 as the reaction medium.
专利号:EP-0328343-A3 优先权日:1988-02-08 标 题 :Process for the synthesis of 3-chloro-4-hydroxyacetanilide
专利号:EP-0328343-A2 优先权日:1988-02-08 标题 :Process for the synthesis of 3-chloro-4-hydroxyacetanilide
专利号:CA-1304407-C 优先权日:1988-02-08 标题:Process for the synthesis of 3-chloro-4-hydroxyacetanilide