FR2367040A1 - Procede de transalcoylation de phenols methyles au noyau - Google Patents

Procede de transalcoylation de phenols methyles au noyau

Info

Publication number
FR2367040A1
FR2367040A1 FR7729175A FR7729175A FR2367040A1 FR 2367040 A1 FR2367040 A1 FR 2367040A1 FR 7729175 A FR7729175 A FR 7729175A FR 7729175 A FR7729175 A FR 7729175A FR 2367040 A1 FR2367040 A1 FR 2367040A1
Authority
FR
France
Prior art keywords
phenols
nucleus
methyl
transalcoylation
core
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR7729175A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruetgers Germany GmbH
Original Assignee
Ruetgerswerke 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
Application filed by Ruetgerswerke AG filed Critical Ruetgerswerke AG
Publication of FR2367040A1 publication Critical patent/FR2367040A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C07C37/48—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by exchange of hydrocarbon groups, which may be substituted, from the same of other compounds, e.g. transalkylation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procédé de transalcoylation des phénols méthyles au noyau en ortho-crésol en phase liquide ou en phase gazeuse. Il est caractérise par le fait que l'on soumet des phénols méthyles au noyau, sans la présence de catalyseurs, à une addition de 5 à 65 % en poids de phénol, calculé par rapport aux phénols méthylés au noyau, et à une température choisie dans l'intervalle de 380 à 490 degrés C, sous une pression de 40 à 100 bars lorsqu'on opère en phase liquide, ou à une température choisie dans l'intervalle de 450 à 650 degrés C, sous une pression de 15 à 60 bars lorsqu'on opère en phase gazeuse. Application dudit procédé à la transalcoylation du 2,6-diméthylphénol ou d'un mélange de phénols méthylés au noyau se présentant, notamment, à l'état de résidu provenant d'une synthèse d'ortho-crésol.
FR7729175A 1976-10-09 1977-09-28 Procede de transalcoylation de phenols methyles au noyau Withdrawn FR2367040A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2645770A DE2645770C3 (de) 1976-10-09 1976-10-09 Verfahren zur Herstellung von o-Kresol durch Transmethylierung von kernmethylierten Phenolen

Publications (1)

Publication Number Publication Date
FR2367040A1 true FR2367040A1 (fr) 1978-05-05

Family

ID=5990155

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729175A Withdrawn FR2367040A1 (fr) 1976-10-09 1977-09-28 Procede de transalcoylation de phenols methyles au noyau

Country Status (7)

Country Link
US (1) US4149019A (fr)
JP (1) JPS5346925A (fr)
BE (1) BE859066A (fr)
DE (1) DE2645770C3 (fr)
FR (1) FR2367040A1 (fr)
GB (1) GB1526659A (fr)
NL (1) NL7710641A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113544112B (zh) 2019-02-04 2024-01-23 中国石油化工股份有限公司 脱烷基和烷基转移混合酚以制备甲酚
EP3921296A1 (fr) 2019-02-04 2021-12-15 China Petroleum & Chemical Corporation Procédé de fabrication de phénol et de xylènes
CN118201900A (zh) * 2021-10-14 2024-06-14 环球油品有限责任公司 生产甲苯酚和二甲苯的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423474A (en) * 1965-05-28 1969-01-21 Chevron Res Selective alkylation of phenol
GB1118287A (en) * 1965-10-28 1968-06-26 Gulf Research Development Co Process for converting polyalkylated phenol to obtain a phenol
US3417149A (en) * 1966-03-16 1968-12-17 Consolidation Coal Co Transmethylation of methylsubstituted phenols
DE1813647B2 (de) * 1968-12-10 1977-08-25 Chemische Werke Lowi Gmbh, 8264 Waldkraiburg Verfahren zur isomerisierung und transalkylierung von methylphenolen

Also Published As

Publication number Publication date
JPS5346925A (en) 1978-04-27
DE2645770C3 (de) 1979-10-18
BE859066A (fr) 1978-01-16
NL7710641A (nl) 1978-04-11
DE2645770B2 (de) 1979-02-15
DE2645770A1 (de) 1978-04-13
GB1526659A (en) 1978-09-27
US4149019A (en) 1979-04-10

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