IE38873L - Production of 3- halogen- and 3,5- dihalogen phenols - Google Patents

Production of 3- halogen- and 3,5- dihalogen phenols

Info

Publication number
IE38873L
IE38873L IE732188A IE218873A IE38873L IE 38873 L IE38873 L IE 38873L IE 732188 A IE732188 A IE 732188A IE 218873 A IE218873 A IE 218873A IE 38873 L IE38873 L IE 38873L
Authority
IE
Ireland
Prior art keywords
halogen
radical
represent
dihalogen
phenols
Prior art date
Application number
IE732188A
Other versions
IE38873B1 (en
Original Assignee
Bayer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19722259433 external-priority patent/DE2259433A1/en
Priority claimed from DE19732344925 external-priority patent/DE2344925C3/en
Priority claimed from DE2344926A external-priority patent/DE2344926C3/en
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of IE38873L publication Critical patent/IE38873L/en
Publication of IE38873B1 publication Critical patent/IE38873B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/24—Preparation of ethers by reactions not forming ether-oxygen bonds by elimination of halogens, e.g. elimination of HCl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
    • B01J27/04—Sulfides
    • B01J27/043—Sulfides with iron group metals or platinum group metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/20—Sulfiding
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1419603 Production of 3-halogen and 3,5- dihalogen phenols BAYER AG 28 Nov 1973 [5 Dec 1972 6 Sept 1973 (2)] 55093/73 Heading C2C [Also in Division B1] A process for the production of 3-halogen and 3,5-dihalogenphenols comprises reacting a halogen compound corresponding to the general formula in which X represents halogen; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> independently of one another represent hydrogen, halogen, an alkyl, aralkyl, aryl, alkoxy, aryloxy, alkylmercapto or dialkylaminomethyl radical, wherein at least one of the radicals R<SP>1</SP>, R<SP>2</SP> or R<SP>4</SP> represents a halogen atom, whilst the radical R<SP>3</SP> can also represent a hydroxy group and, in the case of 3,5-dihalogen phenols, must represent a halogen atom; R represents OH; or R together with R<SP>2</SP> can represent the radical -O-CH 2 -OCH 2 -, attached by the terminal oxygen atom to the 3-position, in which case X, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> independently of one another represent hydrogen, halogen or an alkyl radical and at least one of the radicals X or R<SP>3</SP> and at least one of the radicals R<SP>2</SP> or R<SP>4</SP> represents a halogen atom, with hydrogen at an elevated temperature and pressure in the presence of a catalyst comprising a sulphide or polysulphide of Fe, Co or Ni or of a mixture of these metal sulphides or polysulphides optionally applied to a support or in the presence of a catalyst containing one or more noble metals of Group VIII of the Periodic System in the form of the metal, or a compound thereof together with sulphur and/or sulphur compounds, optionally applied to a support. The reaction may be carried out at a temperature of from 100‹ to 350‹ C. under a hydrogen pressure of from 20 to 250 atmospheres. [GB1419603A]
IE02188/73A 1972-12-05 1973-12-04 A process for the production of 3-halogen and 3,5-dihalogen- phenols IE38873B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19722259433 DE2259433A1 (en) 1972-12-05 1972-12-05 3-Halo- and 3,5-dihalo-phenols prodn. - by selective partial dehalogenation of higher phenols
DE19732344925 DE2344925C3 (en) 1973-09-06 1973-09-06 Process for the preparation of 3-halophenols and 3,5-dihalophenols
DE2344926A DE2344926C3 (en) 1973-09-06 1973-09-06 Process for the preparation of 3-halophenols or 3,5-dihalophenols

Publications (2)

Publication Number Publication Date
IE38873L true IE38873L (en) 1974-06-05
IE38873B1 IE38873B1 (en) 1978-06-21

Family

ID=27184885

Family Applications (1)

Application Number Title Priority Date Filing Date
IE02188/73A IE38873B1 (en) 1972-12-05 1973-12-04 A process for the production of 3-halogen and 3,5-dihalogen- phenols

Country Status (13)

Country Link
JP (1) JPS5745727B2 (en)
AT (1) AT329023B (en)
CA (1) CA1023766A (en)
CH (1) CH592592A5 (en)
DK (1) DK143226C (en)
ES (1) ES421137A1 (en)
FR (1) FR2209738B1 (en)
GB (1) GB1419603A (en)
IE (1) IE38873B1 (en)
IL (1) IL43738A (en)
IT (1) IT1000182B (en)
LU (1) LU68921A1 (en)
NL (1) NL7316527A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2443152C3 (en) * 1974-09-10 1981-05-21 Bayer Ag, 5090 Leverkusen Process for the preparation of phenols meta-substituted by halogen
DE2607349A1 (en) * 1976-02-24 1977-08-25 Bayer Ag MICROBICIDAL META-CHLOROPHENOLS
US4215229A (en) * 1978-06-15 1980-07-29 Koppers Company, Inc. Process for alkylating phenolic compounds to produce ortho- and para-monoalkylated phenols and 2,4- and 2,6-dialkylated phenols
SU877836A1 (en) * 1978-11-23 1984-01-30 Предприятие П/Я Р-6913 Catalyst for dealkylating alkyl benzoates with steam
FR2496641A1 (en) * 1980-12-24 1982-06-25 Rhone Poulenc Ind PROCESS FOR THE PREPARATION OF METACHLORIC PHENOLS
FR2496640A1 (en) * 1980-12-24 1982-06-25 Rhone Poulenc Ind PROCESS FOR THE PREPARATION OF METACHLORIC PHENOLS
FR2496639A1 (en) * 1980-12-24 1982-06-25 Rhone Poulenc Ind PROCESS FOR THE PREPARATION OF METACHLORIC PHENOLS
JPS60115543A (en) * 1983-11-26 1985-06-22 Dai Ichi Kogyo Seiyaku Co Ltd Brominated p-phenylphenol
FR2645531B1 (en) * 1989-04-07 1991-06-07 Atochem PROCESS AND CATALYST FOR DEHALOGENATION OF ALPHAHALOGENIC CARBOXYLIC ACIDS
FR2647032B1 (en) * 1989-04-07 1993-12-10 Atochem PROCESS AND CATALYST FOR DEHALOGENATION OF ALPHAHALOGENIC CARBOXYLIC ACIDS

Also Published As

Publication number Publication date
IT1000182B (en) 1976-03-30
FR2209738B1 (en) 1977-08-05
ATA1009773A (en) 1975-07-15
IE38873B1 (en) 1978-06-21
IL43738A0 (en) 1974-03-14
CH592592A5 (en) 1977-10-31
ES421137A1 (en) 1976-07-01
DK143226C (en) 1981-12-07
NL7316527A (en) 1974-06-07
FR2209738A1 (en) 1974-07-05
JPS4993330A (en) 1974-09-05
IT7354051A1 (en) 1975-06-03
JPS5745727B2 (en) 1982-09-29
GB1419603A (en) 1975-12-31
AT329023B (en) 1976-04-26
CA1023766A (en) 1978-01-03
DK143226B (en) 1981-07-27
IL43738A (en) 1977-03-31
LU68921A1 (en) 1974-02-11

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