公开(公告)号：AT260236T

公开(公告)日：2004-03-15

申请号：AT00120644

申请日：2000-09-21

Applicant: BASF AG

Inventor： SCHEIN KARIN DR ,  BALDENIUS KAI ,  SIEGEL WOLFGANG DR ,  STUERMER RAINER DR ,  RUFF DETLEF DR ,  JAEDICKE HAGEN DR

IPC: C07B61/00 ,  C07C45/46 ,  C07C49/825 ,  C07C67/42 ,  C07C69/017 ,  C07C69/16

Abstract: Preparation of monoacetylated hydroquinone compound comprises reacting a dicetylphenol compound with peroxo compounds optionally using an acid in one reaction step. Preparation of monoacetylated hydroquinone compound of formula (I) comprises reacting a dicetylphenol compound of formula (II) with peroxo compounds optionally using an acid. R1-R3 = H or Me. Independent claims are included for: (1) preparation of (II) by reacting phenol compounds of formula (III) with an acetylation agent using an acid catalyst; (2) preparation of monoacetylated hydroquinone compounds (I) by reacting (III) with an acetylation agent using an acid catalyst to give (II) and further reacting with peroxo compounds, optionally in the presence of an acid; and (3) compounds of formula (Ia)-(Ie).