公开(公告)号：DE50005399D1

公开(公告)日：2004-04-01

申请号：DE50005399

申请日：2000-09-21

Applicant: BASF AG

Inventor： SCHEIN DR ,  BALDENIUS DR ,  SIEGEL DR ,  STUERMER DR ,  RUFF DR ,  JAEDICKE 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).

公开(公告)号：DE59702047D1

公开(公告)日：2000-08-24

申请号：DE59702047

申请日：1997-10-21

Applicant: BASF AG

Inventor： ETZRODT DR ,  STROEZEL MANFRED ,  WELLER DR ,  JAEDICKE DR

IPC: C07C45/69 ,  C07C45/67 ,  C07C45/71 ,  C07C45/76 ,  C07C49/203

公开(公告)号：DE59905169D1

公开(公告)日：2003-05-28

申请号：DE59905169

申请日：1999-11-13

Applicant: BASF AG

Inventor： OOST DR ,  STROEZEL MANFRED ,  ETZRODT DR ,  WELLER DR ,  KAIBEL DR ,  JAEDICKE DR

IPC: B01J31/12 ,  B01J19/18 ,  C07B61/00 ,  C07C45/67 ,  C07C45/68 ,  C07C45/70 ,  C07C49/203

Abstract: Preparation of unsaturated methyl ketones(I), from an unsaturated alcohol(II) and alkyl acetoacetate(III) in the presence of an organo-aluminum catalyst(IV) comprises: (a) supplying (II) and (IV) to a reactor with a distillation column, (b) making temperature to be 170-250 degrees C under elevated pressure, (c) dosing the mixture with (III) and (d) maintaining a constant (III) content of 0.1-10 wt.% during the reaction. Preparation of unsaturated ketones of formula (I) involves reaction of an unsaturated alcohol of formula (II) with an alkyl acetoacetate of formula (III), in presence of 0.1-5 mol. % (based on (II)) of an organo-aluminum compound catalyst (IV), with elimination and distillative separation of the alcohol R3OH formed in the reaction, in a reactor system provided with a distillation column. Reaction is carried out by: (a) supplying (I (which boils at less than 140 degrees C), without a solvent, and (IV) to the reaction vessel, (b) adjusting the temperature to a value as constant as possible in the range 170-250 degrees C under elevated pressure, (c) dosing the mixture with (III) and (d) maintaining a (III) content as constant as possible in the range 0.1-10 wt. % during the reaction. Dotted line = optional bond; R1 = Me or Et; R2, R3 = 1-4C alkyl.

公开(公告)号：DE59804753D1

公开(公告)日：2002-08-22

申请号：DE59804753

申请日：1998-01-21

Applicant: BASF AG

Inventor： VON DEM BUSSCHE-HUENNEFELD DR ,  JAEDICKE DR ,  HARMS DR ,  LAAS DR

IPC: B01J27/02 ,  B01J31/14 ,  C07D311/72

公开(公告)号：DE50000905D1

公开(公告)日：2003-01-23

申请号：DE50000905

申请日：2000-07-20

Applicant: BASF AG

Inventor： PAUST DR ,  ERNST DR ,  KACZMAREK DR ,  JAEDICKE DR

IPC: C07B61/00 ,  C07C231/08 ,  C07C233/18 ,  C07C233/47 ,  C07C233/69 ,  C07C233/83

Abstract: Preparation of N-acyl derivatives (I) using readily available starting materials. N-acyl derivatives of formula R -C(O)N(H)C(R )X (I) are prepared by reacting, in the presence of a compound of formula R -COOH (II), a carbonic acid amide of formula R -CONH2 (III) and a glyoxalmonoacetal derivative of formula R C(O)C(OR )OR (IV). R , R = H or optionally substituted alkyl or aryl; R ,R = 1 - 12C alkyl; and X = CH(OR ) or COOR . An Independent claim is also included for a compound of formula R -C(O)N(H)C(R )C(OR )OR (V).

公开(公告)号：DE50000575D1

公开(公告)日：2002-11-07

申请号：DE50000575

申请日：2000-02-01

Applicant: BASF AG

Inventor： BOTZEM DR ,  JAEDICKE DR ,  JOHN DR ,  PAUST DR

IPC: C07C49/175 ,  C07C237/36 ,  C07C251/08 ,  C07D475/04

公开(公告)号：DE59900760D1

公开(公告)日：2002-03-14

申请号：DE59900760

申请日：1999-08-31

Applicant: BASF AG

Inventor： OOST DR ,  STROEZEL MANFRED ,  ETZRODT DR ,  WELLER DR ,  BOCKSTIEGEL DR ,  REIMER KLAUS ,  KAIBEL DR ,  JAEDICKE DR

IPC: B01J31/14 ,  B01D3/00 ,  B01D3/14 ,  B01D3/32 ,  B01J10/00 ,  B01J19/24 ,  C07B61/00 ,  C07C45/67 ,  C07C45/68 ,  C07C45/82 ,  C07C49/203 ,  C07C67/54 ,  C07C69/72

Abstract: Continuous production of 5-alken-2-one or 3,5-alkadien-2-one derivatives (I) by reacting a 1-alken-3-ol or 1-alkyn-3-ol derivative (II) with an alkyl acetoacetate (III) in a fractionation column to form an acetoacetate and alcohol involves (i) removing the alcohol and (ii) contacting the acetoacetate with catalyst in the lower part or bottom of the column to form (I). Continuous production of unsaturated ketones of formula (I) by reacting an unsaturated alcohol of formula (II) with an alkyl acetoacetate of formula (III) in the presence of an organoaluminum catalyst is carried out by: (a) reacting (II) with (III) on the plates of a fractionation column to form the acetoacetate of (II) and an alcohol of formula R OH; (b) removing the alcohol in the overhead stream from the column; (c) contacting the acetoacetate of (II) with the catalyst in the lower part or bottom of the column to form (I) and CO2; (d) removing the CO2 in the overhead stream from the column; and (e) withdrawing (I) in the bottoms stream from the column. R = 1-4C alkyl; R = 1-37C (un)saturated aliphatic hydrocarbyl (optionally substituted by methoxy groups), 4-12C cycloalkyl or 5-30C cycloalkylalkyl; and R = 1-5C alkyl.