公开(公告)号：DE4139828A1

公开(公告)日：1992-06-17

申请号：DE4139828

申请日：1991-12-03

Applicant: BASF AG

Inventor： HUPFELD BERND DR ,  AUMUELLER ALEXANDER DR

IPC: C07C315/04 ,  C07C317/22

Abstract: Arylsulphones of formula X-Z-O-Phe-SO2-Phe-O-Z-X (I) are produced by reaction of 4,4'-dichloro-diphenyl-sulphone (II) with appropriate cpds. (III) in a solvent, in the presence of a base; the novelty is that the solvent is mainly a dipolar aprotic solvent; Phe = 1,4-phenylene; X = Cl or H; Z = Ph, (1-4C alk(oxy)yl)-phenyl, biphenyl or naphthyl. Also claimed is the cpd. of formula (I) with gps. -Z-X = 2-naphthyl (cpd. IA). Specifically the solvent is NMP and the base is an alkali carbonate; process involves reaction of (II) with a cpd. of formula X-Z-OH (III) in the mol. ratio (II):(III):(base) =(1:2:2)-(1:2:5:3), at 120-200 (pref. 160-190) deg.C. USE/ADVANTAGE - (I) are useful for the prodn. of high temp.-resistant thermoplastics. Use of the above type of solvent enables the prodn. of very pure (above 98%) (I) in a very high yield (96% or above), esp. the new cpd. (IA)):

公开(公告)号：DE4131143A1

公开(公告)日：1993-03-25

申请号：DE4131143

申请日：1991-09-19

Applicant: BASF AG

Inventor： AUMUELLER ALEXANDER DR ,  EBERLE WOLFGANG DR ,  HEINZ GERHARD DR ,  HUPFELD BERND DR ,  HUSEMANN CHRISTIANE DR ,  KOCH JUERGEN DR ,  REICHELT HELMUT DR

IPC: C08G65/40 ,  C08G75/23

Abstract: Prepn. of polyarylethers (I) or (II) by condensation of at least one corresp. bisphenol with at least one corresp. dichloro-aromatic in a polar aprotic solvent contg. an alkali metal carbonate and in the presence of a catalyst comprising alkali metal nitrites and cpds., where X, X', Q, Q', W, W' = -SO2, -O-, -CO-, a chemical bond or -CRR'-; R,R' = H, 1-6C alkyl or alkoxy, aryl or their fluorinated or chlorinated derivs.; p,q,r = 0,1; R1,R3 = H, 7-16C phenylalkyl, 1-12C alkoxy, F, Cl, Br, I or a nitro gp.; R2 = a nitro or nitroso gp. or (IV), (V) or (VI), where R4 = H, 1-4C alkyl, F, Cl, Br or I.

公开(公告)号：DE4227590A1

公开(公告)日：1994-02-24

申请号：DE4227590

申请日：1992-08-20

Applicant: BASF AG

Inventor： DIX JOHANNES PETER DR ,  HUPFELD BERND DR ,  LAMM GUNTHER DR ,  REICHELT HELMUT DR

IPC: C09B29/01 ,  C09B29/42 ,  C09B31/153 ,  C09B35/031 ,  C09B35/039 ,  D06P1/39

Abstract: Azo dyes useful for dyeing natural or synthetic substrates have the formula where n is from 1 to 4, q is 1 or 2, L1 is hydrogen or C1-C3-alkyl, L2 is acetyl, carbamoyl or hydroxysulfonyl, and D is the radical of a diazo component.

公开(公告)号：DE4134147A1

公开(公告)日：1993-04-22

申请号：DE4134147

申请日：1991-10-16

Applicant: BASF AG

Inventor： HUPFELD BERND DR ,  AUMUELLER ALEXANDER DR

IPC: C07C205/38 ,  C07C213/02 ,  C07C217/90 ,  C07C315/04 ,  C07C317/22 ,  C07C319/20 ,  C07C323/20

公开(公告)号：DE19532815A1

公开(公告)日：1997-03-13

申请号：DE19532815

申请日：1995-09-06

Applicant: BASF AG

Inventor： WETTLING THOMAS DR ,  DIMMLER MANFRED DR ,  HUPFELD BERND DR ,  HENKELMANN JOCHEM DR

IPC: C07D307/12 ,  C07C67/08 ,  C07C69/712 ,  C07C69/736

公开(公告)号：DE4131144A1

公开(公告)日：1993-03-25

申请号：DE4131144

申请日：1991-09-19

Applicant: BASF AG

Inventor： HAHN ERWIN DR ,  EILINGSFELD HEINRICH JOHANN DR ,  REICHELT HELMUT DR ,  AUMUELLER ALEXANDER DR ,  HUPFELD BERND DR

IPC: B01J31/02 ,  C07B61/00 ,  C07C45/71 ,  C07C49/84 ,  C07C315/04 ,  C07C317/22

Abstract: A process for the preparation of aromatic carbonyl or sulfonyl compounds with a diaryl ether structure by reacting phenols with halogenated carbonyl- or sulfonylaromatic compounds in a dipolar aprotic solvent is carried out in the presence of catalytic amounts of alkali metal nitrite or an aromatic nitro, nitroso, azo, azoxy or hydrazo compound.

公开(公告)号：DE4100976A1

公开(公告)日：1992-07-16

申请号：DE4100976

申请日：1991-01-15

Applicant: BASF AG

Inventor： HUPFELD BERND DR ,  REICHELT HELMUT DR

IPC: C07C315/00 ,  C07C317/14

公开(公告)号：DE3924395A1

公开(公告)日：1991-01-31

申请号：DE3924395

申请日：1989-07-24

Applicant: BASF AG

Inventor： HUPFELD BERND DR ,  STUMPP MICHAEL DR ,  REICHELT HELMUT DR

IPC: C07C315/00 ,  C07C317/22

Abstract: Bis-(4-hydroxyphenyl)-sulphone (I) is prepd. by reacting phenol with sulphuric acid in a mol. ratio of 1:1 to 25:1 at 140-230 deg.C in the absence of an inert solvent. Pref. the reaction is carried out at 160-200 deg.C and a pres. of 0.5-1.5 bar, using a mol. ratio phenol: H2SO4 of 2.1:1 to 25:1 and pref. in the presence of a sulphonation catalyst, eg. a Lewis acid such as boric acid or trifluoromethanesulphonic acid. Pref. the reaction is carried out in excess phenol in the absence of inert solvent and the excess phenol is removed by distn. during or after the initial stage, during or after the intermediate reaction-progressing stage, or after reaction is essentially complete.