公开(公告)号：FR2618144B1

公开(公告)日：1989-11-24

申请号：FR8710417

申请日：1987-07-17

Applicant: RHONE POULENC CHIMIE

Inventor： DESMURS JEAN ,  BESSON BERNARD ,  JOUVE ISABELLE

IPC: B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C27/00 ,  C07C37/62 ,  C07C39/27 ,  C07C39/32 ,  C07C67/00 ,  C07C67/287 ,  C07C69/157

Abstract: A process for the chlorination, using gaseous chlorine, of phenolic compounds substituted in an ortho position relative to the hydroxyl function group. More precisely, it is a process for the chlorination of these phenolic compounds in the molten state or in a solvent medium, using gaseous chlorine, in the presence of an organic cation. The process is applicable especially to the chlorination of 2,6- dichlorophenol to 2,4,6-trichlorophenol.

公开(公告)号：IE61124B1

公开(公告)日：1994-10-05

申请号：IE215388

申请日：1988-07-14

Applicant: RHONE POULENC CHIMIE

Inventor： DESMURS JEAN-ROGER ,  BESSON BERNARD ,  JOUVE ISABELLE

IPC: B01J31/02 ,  C07C41/22 ,  C07B39/00 ,  C07B61/00 ,  C07C37/62 ,  C07C39/27 ,  C07C43/23 ,  C07C51/363 ,  C07C65/03 ,  C07C67/307 ,  C07C69/63 ,  C07C69/88 ,  C07C205/59 ,  C07C231/00 ,  C07C233/25 ,  C07C233/33 ,  C07C233/43 ,  C07C233/54 ,  C07C255/53

Abstract: Selective chlorination, using gaseous chlorine, of phenolic compounds, in an ortho position relative to the hydroxyl functional group. More precisely, a process for the selective chlorination in an ortho position relative to the hydroxyl functional group of phenolic compounds, using gaseous chlorine in a molten medium and in the presence of an organic cation. The process is applicable especially to the chlorination of 2,4- dichlorophenol as a mixture with 2,6-dichlorophenol.

公开(公告)号：AT70255T

公开(公告)日：1991-12-15

申请号：AT88420243

申请日：1988-07-13

Applicant: RHONE POULENC CHIMIE

Inventor： DESMURS JEAN-ROGER ,  BESSON BERNARD ,  JOUVE ISABELLE

IPC: C07C41/22 ,  B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C37/62 ,  C07C39/27 ,  C07C43/23 ,  C07C51/363 ,  C07C65/03 ,  C07C67/307 ,  C07C69/63 ,  C07C69/88 ,  C07C205/59 ,  C07C231/00 ,  C07C233/25 ,  C07C233/33 ,  C07C233/43 ,  C07C233/54 ,  C07C255/53

公开(公告)号：FR2611701B1

公开(公告)日：1989-06-16

申请号：FR8703208

申请日：1987-03-05

Applicant: RHONE POULENC CHIMIE

Inventor： BESSON BERNARD ,  DESMURS JEAN ,  JOUVE ISABELLE

IPC: B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C27/00 ,  C07C37/62 ,  C07C39/27 ,  C07C39/28 ,  C07C39/32 ,  C07C41/22 ,  C07C41/00 ,  C07C43/23 ,  C07C67/00 ,  C07C69/157 ,  C07C201/00 ,  C07C205/26 ,  C07C205/43 ,  C07C231/00 ,  C07C231/12 ,  C07C233/25 ,  C07C43/247 ,  C07C79/32 ,  C07C103/38 ,  C07C67/287 ,  C07C69/12

Abstract: The chlorophenols, e.g., 2,4,6-trichlorophenol, are efficiently prepared by chlorinating an ortho-/para-substituted phenolic compound with gaseous chlorine, whether in molten state or in a solvent reaction medium, in the presence of a catalytically effective amount of a primary, secondary or tertiary amine.

公开(公告)号：FR2611702B1

公开(公告)日：1989-06-09

申请号：FR8703207

申请日：1987-03-05

Applicant: RHONE POULENC CHIMIE

Inventor： LEBLANC JEAN-CLAUDE ,  RATTON SERGE ,  BESSON BERNARD ,  DESMURS JEAN

IPC: B01J27/02 ,  B01J27/08 ,  C07B61/00 ,  B01J27/125 ,  B01J27/128 ,  B01J31/02 ,  C07C37/62 ,  C07C39/28 ,  C07C39/30

Abstract: Chlorination of ortho-chlorophenol to 2,6-dichlorophenol, performed in the melt optionally in the presence of other chlorophenols and in the presence of an effective quantity of a primary, secondary or tertiary amine. 2,6-Dichlorophenol can be used especially as intermediate for the preparation of plant-protection products.

公开(公告)号：IE60087B1

公开(公告)日：1994-06-01

申请号：IE63288

申请日：1988-03-04

Applicant: RHONE POULENC CHIMIE

Inventor： BESSON BERNARD ,  LEBLANC JEAN-CLAUDE ,  RATTON SERGE ,  DESMURS JEAN-ROGER

IPC: B01J27/02 ,  B01J27/08 ,  B01J27/125 ,  C07B61/00 ,  B01J27/128 ,  B01J31/02 ,  C07C37/62 ,  C07C39/28 ,  C07C39/30

Abstract: Chlorination of ortho-chlorophenol to 2,6-dichlorophenol, performed in the melt optionally in the presence of other chlorophenols and in the presence of an effective quantity of a primary, secondary or tertiary amine. 2,6-Dichlorophenol can be used especially as intermediate for the preparation of plant-protection products.

公开(公告)号：CA1301194C

公开(公告)日：1992-05-19

申请号：CA572164

申请日：1988-07-15

Applicant: RHONE POULENC CHIMIE

Inventor： DESMURS JEAN-ROGER ,  BESSON BERNARD ,  JOUVE ISABELLE

IPC: C07C41/22 ,  B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C37/62 ,  C07C39/27 ,  C07C43/23 ,  C07C51/363 ,  C07C65/03 ,  C07C67/307 ,  C07C69/63 ,  C07C69/88 ,  C07C205/59 ,  C07C231/00 ,  C07C233/25 ,  C07C233/33 ,  C07C233/43 ,  C07C233/54 ,  C07C255/53 ,  C07C201/12

Abstract: L'invention concerne un procédé de chloration sélective en position ortho par rapport à la fonction hydroxyle, de composés phénoliques de formule générale (I): (I) dans laquelle: R2 représente: un atome d'halogène; un groupement alkyle ayant 1 à 4 atomes de carbone; un groupement alkoxy ayant 1 à 4 atomes de carbone; un groupement acyloxy ayant 2 à 4 atomes de carbone; un groupement acyle ayant 2 à 4 atomes de carbone; un groupement acide carboxylique; un groupement ester -COOR5, R5 représentant un radical alkyle linéaire ou ramifié ayant de 1 à 4 atomes de carbone; un groupement nitrile; un groupement OH; un groupement -CHO; un groupement -NO2; un groupement acétamido; -R1 représente un atome d'hydrogène ou possède l'une des significations indiquées pour R2; -R3 et R4, identiques ou différents, représentent un atome d'hydrogène ou un atome ou groupement tel que ceux représentés par R2; en milieu fondu, par le chlore gazeux, caractérisé en ce que l'on opère en présence d'une quantité efficace d'au moins un cation organique. Ce procédé est applicable notamment à la chloration du dichloro-2,4 phénol en mélange avec le dichloro-2,6 phénol.

公开(公告)号：DE3866806D1

公开(公告)日：1992-01-23

申请号：DE3866806

申请日：1988-07-13

Applicant: RHONE POULENC CHIMIE

Inventor： DESMURS JEAN-ROGER ,  BESSON BERNARD ,  JOUVE ISABELLE

IPC: C07C41/22 ,  B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C37/62 ,  C07C39/27 ,  C07C43/23 ,  C07C51/363 ,  C07C65/03 ,  C07C67/307 ,  C07C69/63 ,  C07C69/88 ,  C07C205/59 ,  C07C231/00 ,  C07C233/25 ,  C07C233/33 ,  C07C233/43 ,  C07C233/54 ,  C07C255/53

Abstract: Selective chlorination, using gaseous chlorine, of phenolic compounds, in an ortho position relative to the hydroxyl functional group. More precisely, a process for the selective chlorination in an ortho position relative to the hydroxyl functional group of phenolic compounds, using gaseous chlorine in a molten medium and in the presence of an organic cation. The process is applicable especially to the chlorination of 2,4- dichlorophenol as a mixture with 2,6-dichlorophenol.

公开(公告)号：FR2618145B1

公开(公告)日：1989-11-24

申请号：FR8710418

申请日：1987-07-17

Applicant: RHONE POULENC CHIMIE

Inventor： DESMURS JEAN ,  BESSON BERNARD ,  JOUVE ISABELLE

IPC: B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C41/22 ,  C07C37/62 ,  C07C39/27 ,  C07C43/23 ,  C07C51/363 ,  C07C65/03 ,  C07C67/307 ,  C07C69/63 ,  C07C69/88 ,  C07C205/59 ,  C07C231/00 ,  C07C233/25 ,  C07C233/33 ,  C07C233/43 ,  C07C233/54 ,  C07C255/53 ,  C07C39/32 ,  C07C39/30

Abstract: Selective chlorination, using gaseous chlorine, of phenolic compounds, in an ortho position relative to the hydroxyl functional group. More precisely, a process for the selective chlorination in an ortho position relative to the hydroxyl functional group of phenolic compounds, using gaseous chlorine in a molten medium and in the presence of an organic cation. The process is applicable especially to the chlorination of 2,4- dichlorophenol as a mixture with 2,6-dichlorophenol.

公开(公告)号：FR2628736A1

公开(公告)日：1989-09-22

申请号：FR8803764

申请日：1988-03-17

Applicant: RHONE POULENC CHIMIE

Inventor： BESSON BERNARD ,  DESMURS JEAN-ROGER ,  JOUVE ISABELLE

IPC: C07C37/86 ,  C07C39/27

Abstract: A mixt. of phenol chlorination prods. and/or chlorophenols is stabilised by agitating the mixt. in presence of water and a chlorine acceptor reducing cpd. (I) which is soluble in water. (I) is an inorganic reducing cpd. in the form of metal salts, pref. alkali metal salts, or an organic reducing cpd. contg. substituent(s) or in a form making it water-soluble. USE/ADVANTAGE - For stabilising mixts. of tri-, tetra- and pentaphenols. The stabilised mixts. do not generate chlorophenoxyphenols or undergo an increase in concn. of certain phenols during storage.