GB974843A - Improved process for the preparation of 2-alkyl phenols and 2,6-dialkyl phenols - Google Patents

Improved process for the preparation of 2-alkyl phenols and 2,6-dialkyl phenols

Info

Publication number
GB974843A
GB974843A GB19541/62A GB1954162A GB974843A GB 974843 A GB974843 A GB 974843A GB 19541/62 A GB19541/62 A GB 19541/62A GB 1954162 A GB1954162 A GB 1954162A GB 974843 A GB974843 A GB 974843A
Authority
GB
United Kingdom
Prior art keywords
phenol
preparation
phenols
oph
alkylphenol
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.)
Expired
Application number
GB19541/62A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB974843A publication Critical patent/GB974843A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
    • C07C39/06—Alkylated phenols
    • 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
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/14—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by addition reactions, i.e. reactions involving at least one carbon-to-carbon unsaturated bond
    • 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
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/16—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by condensation involving hydroxy groups of phenols or alcohols or the ether or mineral ester group derived therefrom

Landscapes

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

Abstract

A process for the preparation of 2,6-dialkyl phenols from an olefin and phenol in presence of aluminium halide catalysts claimed in Specification 843,745 is characterized in that there are added to the reaction mixture per mole of phenol, 2-5 moles olefin, 0.001-0.2 mole AlXX12 (X=halogen or OH each X1=halogen or OPh) and at least 0.0001 mole water and the reaction conditions are 100-200 DEG C. and 100-5,000 p.s.i.g. The present process may also be employed in the preparation of mono-o-alkyl phenol, the desired product being separated between the moment at which the ratio 2-alkyl-phenol/2-alkylphenol +2, 6-dialkylphenol +4-alkylphenol +2, 4-dialkylphenol +2, 4, 6-trialkylphenol reaches a maximum and the moment at which the concentration of the 2-alkylphenol as such is a maximum. The production of 2-t-butyl phenol and 2, 6-di-t-butylphenol is exemplified; the active catalyst is Al(OH) (OPh)2 (which may be separated from reaction mixture by addition of hexane) whether it is AlCl3 or AlCl(OPh)2 are used initially. Specification 895,928 and U.S.A. Specification 2,831,898 also are referred to.
GB19541/62A 1961-05-22 1962-05-21 Improved process for the preparation of 2-alkyl phenols and 2,6-dialkyl phenols Expired GB974843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11164861A 1961-05-22 1961-05-22

Publications (1)

Publication Number Publication Date
GB974843A true GB974843A (en) 1964-11-11

Family

ID=22339679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19541/62A Expired GB974843A (en) 1961-05-22 1962-05-21 Improved process for the preparation of 2-alkyl phenols and 2,6-dialkyl phenols

Country Status (2)

Country Link
BE (1) BE617913A (en)
GB (1) GB974843A (en)

Also Published As

Publication number Publication date
BE617913A (en) 1962-11-21

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