ATE670T1 - PROCESS FOR THE PREPARATION OF P-TERT-BUTYLBENZALDEHYDE AND ITS CORE-SUBSTITUTED BY HALOGEN DERIVATIVES. - Google Patents

PROCESS FOR THE PREPARATION OF P-TERT-BUTYLBENZALDEHYDE AND ITS CORE-SUBSTITUTED BY HALOGEN DERIVATIVES.

Info

Publication number
ATE670T1
ATE670T1 AT79104477T AT79104477T ATE670T1 AT E670 T1 ATE670 T1 AT E670T1 AT 79104477 T AT79104477 T AT 79104477T AT 79104477 T AT79104477 T AT 79104477T AT E670 T1 ATE670 T1 AT E670T1
Authority
AT
Austria
Prior art keywords
tert
substituted
butylbenzaldehyde
nucleus
core
Prior art date
Application number
AT79104477T
Other languages
German (de)
Inventor
Franz Dr. Landauer
Georg Dr. Schaeffer
Original Assignee
Hoechst Aktiengesellschaft
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25776504&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE670(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE2849692A external-priority patent/DE2849692B2/en
Priority claimed from DE19792911237 external-priority patent/DE2911237B2/en
Application filed by Hoechst Aktiengesellschaft filed Critical Hoechst Aktiengesellschaft
Application granted granted Critical
Publication of ATE670T1 publication Critical patent/ATE670T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/80—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C22/00—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom
    • C07C22/02—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings
    • C07C22/04—Cyclic compounds containing halogen atoms bound to an acyclic carbon atom having unsaturation in the rings containing six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
    • C07C25/02—Monocyclic aromatic halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
    • C07C25/02—Monocyclic aromatic halogenated hydrocarbons
    • C07C25/13—Monocyclic aromatic halogenated hydrocarbons containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/42—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis
    • C07C45/43—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis of >CX2 groups, X being halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/85—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification

Landscapes

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

Abstract

p-tert.Butylbenzaldehyde and the derivatives thereof which are halogen-substituted at the nucleus are prepared by bromination of p-tert.butyltoluene and the derivatives thereof which are correspondingly halogen-substituted at the nucleus under side-chain halogenation conditions until the benzal bromide is obtained which is then saponified. Practically no undesired bromination at the nucleus or the tert.butyl group takes place. The products obtained are valuable intermediates for the manufacture of pharmaceutical agents, plant protecting agents and dyestuffs.
AT79104477T 1978-11-16 1979-11-13 PROCESS FOR THE PREPARATION OF P-TERT-BUTYLBENZALDEHYDE AND ITS CORE-SUBSTITUTED BY HALOGEN DERIVATIVES. ATE670T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2849692A DE2849692B2 (en) 1978-11-16 1978-11-16 Para-tert.-butyl-benzaldehyde prepn. - by bromination of para-tert. butyl toluene and saponification of the resulting para-tert. butyl-benzal-bromide
DE19792911237 DE2911237B2 (en) 1979-03-22 1979-03-22 Process for the preparation of p-tert-butylbenzaldehyde and its derivatives which are mono-substituted on the core by halogen
EP79104477A EP0011281B1 (en) 1978-11-16 1979-11-13 Process for the preparation of p-tert.-butyl benzaldehyde and the derivatives thereof substituted in the nucleus by halogen.

Publications (1)

Publication Number Publication Date
ATE670T1 true ATE670T1 (en) 1982-02-15

Family

ID=25776504

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79104477T ATE670T1 (en) 1978-11-16 1979-11-13 PROCESS FOR THE PREPARATION OF P-TERT-BUTYLBENZALDEHYDE AND ITS CORE-SUBSTITUTED BY HALOGEN DERIVATIVES.

Country Status (8)

Country Link
US (1) US4277421A (en)
EP (2) EP0011281B1 (en)
AT (1) ATE670T1 (en)
AU (1) AU529156B2 (en)
BR (1) BR7907434A (en)
CA (1) CA1133939A (en)
DE (2) DE2964310D1 (en)
IL (1) IL58718A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690031A (en) * 1979-12-21 1981-07-21 Sumitomo Chem Co Ltd Preparation of aromatic aldehyde
DE3029369A1 (en) * 1980-08-01 1982-03-18 Bayer Ag, 5090 Leverkusen METHOD FOR (ALPHA) -HALOGENING OF OPTIONALLY SUBSTITUTED METHYLAROMATS AND (ALPHA) -BROM AND (ALPHA) -CHLORINE-CONTAINING MIXTURES
DE3029367A1 (en) * 1980-08-01 1982-03-04 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 4-TERT.-BUTYLBENZALDEHYDES
DE3029368A1 (en) * 1980-08-01 1982-03-04 Bayer Ag, 5090 Leverkusen METHOD FOR HALOGENING POTENTIALLY SUBSTITUTED 4-TERT.-BUTYL TOLUOLES AND THE MIXTURES OBTAINED THEREOF FROM POTENTIALLY SUBSTITUTED 4-TERT.-BUTYLBENZALHALOGENIDIDE AND 4-TERTY
GB2103208B (en) * 1981-07-21 1985-08-21 Central Glass Co Ltd Vapor phase catalytic hydrolysis of benzal chloride or its halogen- or trifluoromethyl-substitute to form benzaldehyde or substitute

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB816253A (en) * 1957-01-15 1959-07-08 Chemon Corp Improvements relating to the production of benzaldehyde from toluene
US3700736A (en) * 1969-07-16 1972-10-24 Sumitomo Chemical Co Preparation of p-methylsulfonyl benzaldehhyde
CH526493A (en) 1969-09-19 1972-08-15 Ciba Geigy Ag Process for the production of aromatic aldehydes
FR2163741A1 (en) * 1971-12-17 1973-07-27 Albright & Wilson Aldehydes prodn - by hydrolysing of gem org dihalides in presence of phosphoric or sulphonic acid catalysts
JPS5225733A (en) * 1975-08-19 1977-02-25 Ihara Chem Ind Co Ltd Process for preparation of benzaldehydes
US4085147A (en) * 1976-02-05 1978-04-18 Shell Oil Company Preparation of meta-aryloxy-benzaldehydes
US4108904A (en) * 1976-09-22 1978-08-22 American Cyanamid Company Process for the preparation of m-phenoxybenzaldehyde

Also Published As

Publication number Publication date
DE2964310D1 (en) 1983-01-20
EP0011281B1 (en) 1982-02-10
AU529156B2 (en) 1983-05-26
EP0011281A2 (en) 1980-05-28
EP0034837A1 (en) 1981-09-02
EP0011281A3 (en) 1980-09-03
DE2962101D1 (en) 1982-03-18
CA1133939A (en) 1982-10-19
US4277421A (en) 1981-07-07
IL58718A (en) 1983-07-31
IL58718A0 (en) 1980-02-29
BR7907434A (en) 1980-09-09
EP0034837B1 (en) 1982-12-15
AU5281079A (en) 1980-05-22

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Legal Events

Date Code Title Description
RVE Rejection due to an opposition filed with the epo