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公开(公告)号:FR2633612B1
公开(公告)日:1991-03-08
申请号:FR8808725
申请日:1988-06-29
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN
Abstract: The present invention relates to a process for purifying 4,4'-dihydroxybiphenyl by acylation of the preparation mixture and selective precipitation of diacetylbiphenyl.
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公开(公告)号:FR2630434B1
公开(公告)日:1990-09-07
申请号:FR8805330
申请日:1988-04-22
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN
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公开(公告)号:FR2610924B1
公开(公告)日:1990-05-04
申请号:FR8701967
申请日:1987-02-12
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN , DESMURS JEAN-ROGER
IPC: B01J23/78 , B01J27/122 , C07B61/00 , C07C27/00 , C07C37/02 , C07C39/15 , C07C67/00 , H01R13/508 , H01R13/516
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公开(公告)号:FR2631336A1
公开(公告)日:1989-11-17
申请号:FR8806260
申请日:1988-05-10
Applicant: RHONE POULENC CHIMIE
Inventor: DESMURS JEAN-ROGER , JOUVE ISABELLE , NONN ALAIN
Abstract: The invention relates to a process for the bromination of the double bond of phenols or of substituted phenols containing ethylenic chains. According to a first variant, the product to be brominated is reacted with an onium tribromide. According to a second variant, the product to be brominated is reacted with a brominating agent in the presence of a catalytic amount of onium bromide.
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公开(公告)号:FR2610924A1
公开(公告)日:1988-08-19
申请号:FR8701967
申请日:1987-02-12
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN , DESMURS JEAN-ROGER
IPC: B01J23/78 , B01J27/122 , C07B61/00 , C07C27/00 , C07C37/02 , C07C39/15 , C07C67/00 , H01R13/508 , H01R13/516
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公开(公告)号:DE3874565D1
公开(公告)日:1992-10-22
申请号:DE3874565
申请日:1988-01-07
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN
IPC: B01J23/72 , B01J27/122 , B01J27/18 , B01J27/25 , B01J27/26 , B01J31/02 , C07B61/00 , C07C27/00 , C07C37/02 , C07C39/15 , C07C67/00
Abstract: A process for the production of a hydroxybiphenyl by the hydrolysis of a bromobiphenyl, at a temperature below 300 DEG C., in the presence of both a copper-based catalyst and a separate cocatalyst selected from amongst halides, phosphates, nitrates, alcoholates, silicates, alcohols, carboxylic acids, sulfonic acids, organic sulfur-containing compounds, carbon monoxide, quinolines, tertiary amines, ammoniums, phosphines, phosphoniums, cyanides and palladium.
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公开(公告)号:AT80602T
公开(公告)日:1992-10-15
申请号:AT88400027
申请日:1988-01-07
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN
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公开(公告)号:DE68901217D1
公开(公告)日:1992-05-21
申请号:DE68901217
申请日:1989-06-21
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN
Abstract: The invention relates to a process for the bromination of biphenyl especially for the preparation of 4-bromobiphenyl or of 4,4'-dibromobiphenyl. According to the invention, biphenyl is reacted with BrCl.
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公开(公告)号:FR2633286B1
公开(公告)日:1991-08-02
申请号:FR8808583
申请日:1988-06-27
Applicant: RHONE POULENC CHIMIE
Inventor: NONN ALAIN
Abstract: The invention relates to a process for the bromination of biphenyl especially for the preparation of 4-bromobiphenyl or of 4,4'-dibromobiphenyl. According to the invention, biphenyl is reacted with BrCl.
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公开(公告)号:FR2628100B1
公开(公告)日:1990-11-30
申请号:FR8802608
申请日:1988-03-02
Applicant: RHONE POULENC CHIMIE
Inventor: DESMURS JEAN-ROGER , NONN ALAIN
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