FR2366242A1 - Procede de preparation de b-isopropyl-naphtalene - Google Patents

Procede de preparation de b-isopropyl-naphtalene

Info

Publication number
FR2366242A1
FR2366242A1 FR7729656A FR7729656A FR2366242A1 FR 2366242 A1 FR2366242 A1 FR 2366242A1 FR 7729656 A FR7729656 A FR 7729656A FR 7729656 A FR7729656 A FR 7729656A FR 2366242 A1 FR2366242 A1 FR 2366242A1
Authority
FR
France
Prior art keywords
naphthalene
isopropyl
beta
propylene
bars
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.)
Granted
Application number
FR7729656A
Other languages
English (en)
Other versions
FR2366242B1 (fr
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of FR2366242A1 publication Critical patent/FR2366242A1/fr
Application granted granted Critical
Publication of FR2366242B1 publication Critical patent/FR2366242B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/20—Polycyclic condensed hydrocarbons
    • C07C15/24—Polycyclic condensed hydrocarbons containing two rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
    • C07C2/66—Catalytic processes
    • C07C2/70—Catalytic processes with acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
    • C07C5/2732—Catalytic processes
    • C07C5/274—Catalytic processes with inorganic acids; with salts or anhydrides of acids
    • C07C5/2745—Acids of phosphorus; Salts thereof; Phosphorus acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • C07C2521/08—Silica
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/14—Phosphorus; Compounds thereof
    • C07C2527/16—Phosphorus; Compounds thereof containing oxygen
    • C07C2527/167—Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-
    • C07C2527/173—Phosphoric acid or other acids with the formula Hn+2PnO3n+1

Landscapes

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

Abstract

La présente invention est relative à un procédé de préparation de beta -isopropyl-naphtalène par conversion de naphtalène avec du propylène, en présence d'un catalyseur à base d'acide phosphorique déposé sur SiO2 (1**re étape), puis par isomérisation de l' alpha -iscpropyl-naphtalène et du beta -isopropyl-naphtalène (2**e étape), caractérisé en ce que, dans la première étape, on fait réagir progressivement sur du naphtalène liquéfié, à une température de 150 à 280 degrés et sous une pression de 5 à 30 bars, du propylène dans un rapport molaire de 1/5 à 1/20 mole de propylène par mole de naphtalène de départ, jusqu'à ce que 45 à 65 % du naphtalène soient isopropylés et on chauffe ensuite le mélange réactionnel jusqu'à 180 à 280 degrés C, sans séparation préalable du naphtalène non converti, en opérant également en présence d'un catalyseur à base d'acide phosphorique et sous une pression de gaz inerte de 5 à 30 bars, jusqu'à ce qu'il ne se forme pratiquement. plus dans le mélange d'isomères de beta -isopropyl-naphtalène et on isole le beta -isopropyl-naphtalène du mélange réactionnel.
FR7729656A 1976-10-02 1977-10-03 Procede de preparation de b-isopropyl-naphtalene Granted FR2366242A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2644624A DE2644624C2 (de) 1976-10-02 1976-10-02 Verfahren zur Herstellung von β-Isopropyl-naphthalin

Publications (2)

Publication Number Publication Date
FR2366242A1 true FR2366242A1 (fr) 1978-04-28
FR2366242B1 FR2366242B1 (fr) 1980-10-03

Family

ID=5989557

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729656A Granted FR2366242A1 (fr) 1976-10-02 1977-10-03 Procede de preparation de b-isopropyl-naphtalene

Country Status (5)

Country Link
US (1) US4440957A (fr)
JP (1) JPS5350146A (fr)
DE (1) DE2644624C2 (fr)
FR (1) FR2366242A1 (fr)
GB (1) GB1538367A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498177A1 (fr) * 1981-01-16 1982-07-23 Ugine Kuhlmann Preparation regioselective du b-isopropylnaphtalene sur des catalyseurs superacides solides ou supportes a base d'acides perfluorosulfoniques

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8423636D0 (en) * 1984-09-19 1984-11-14 Fisons Plc Analytical solutions
JPH01197448A (ja) * 1988-02-01 1989-08-09 Chiyoda Corp ナフタレンからのジイソプロピルナフタレンの製造方法
US5839313A (en) * 1998-02-18 1998-11-24 Danieli United, A Division Of Danieli Corporation Rolling mill with intermediate crossed rolls background
CN114031116B (zh) * 2021-12-24 2022-10-14 中南大学 β型四钼酸铵的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458587A (en) * 1967-11-14 1969-07-29 Sun Oil Co Preparation of beta-isopropylnaphthalene
US3504046A (en) * 1968-04-26 1970-03-31 American Cyanamid Co Alkylation of naphthalene with propylene in the presence of phosphoric acid catalyst
US3504045A (en) * 1969-06-03 1970-03-31 American Cyanamid Co Isomerization of alpha isopropyl naphthalene to beta isopropyl naphthalene
JPS5622087B2 (fr) * 1972-09-08 1981-05-23
US3813451A (en) * 1973-01-16 1974-05-28 Monsanto Co Process for alkylation of aromatic compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498177A1 (fr) * 1981-01-16 1982-07-23 Ugine Kuhlmann Preparation regioselective du b-isopropylnaphtalene sur des catalyseurs superacides solides ou supportes a base d'acides perfluorosulfoniques

Also Published As

Publication number Publication date
GB1538367A (en) 1979-01-17
DE2644624C2 (de) 1987-02-19
JPS5350146A (en) 1978-05-08
JPS5761253B2 (fr) 1982-12-23
FR2366242B1 (fr) 1980-10-03
US4440957A (en) 1984-04-03
DE2644624A1 (de) 1978-04-06

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