Nothing Special   »   [go: up one dir, main page]

DK170286D0 - PROCEDURE FOR THE PREPARATION OF 4,4'-DIACYL BIPHENYLES - Google Patents

PROCEDURE FOR THE PREPARATION OF 4,4'-DIACYL BIPHENYLES

Info

Publication number
DK170286D0
DK170286D0 DK170286A DK170286A DK170286D0 DK 170286 D0 DK170286 D0 DK 170286D0 DK 170286 A DK170286 A DK 170286A DK 170286 A DK170286 A DK 170286A DK 170286 D0 DK170286 D0 DK 170286D0
Authority
DK
Denmark
Prior art keywords
biphenyles
diacyl
procedure
preparation
boron trifluoride
Prior art date
Application number
DK170286A
Other languages
Danish (da)
Other versions
DK170286A (en
Inventor
Michel Crochemore
Original Assignee
Rhone Poulenc Spec Chim
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 Rhone Poulenc Spec Chim filed Critical Rhone Poulenc Spec Chim
Publication of DK170286D0 publication Critical patent/DK170286D0/en
Publication of DK170286A publication Critical patent/DK170286A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/782—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic
    • 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
    • C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • C07C45/46—Friedel-Crafts reactions
    • 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
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/76—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton with the aid of ketenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Magnetic Heads (AREA)
  • Glass Compositions (AREA)
  • Saccharide Compounds (AREA)

Abstract

1. Process for preparing 4,4'-diacylbiphenyl characterized in that biphenyl is brought into contact with an acylating agent in liquid hydrofluoric acid at a temperature greater than or equal to 50 degrees C, in the presence of boron trifluoride in such an amount that the absolute pressure of boron trifluoride in the reaction chamber is at least one bar.
DK170286A 1985-04-16 1986-04-15 Roof element DK170286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8505909A FR2580276B1 (en) 1985-04-16 1985-04-16 PROCESS FOR THE PREPARATION OF ACYLBIPHENYLES

Publications (2)

Publication Number Publication Date
DK170286D0 true DK170286D0 (en) 1986-04-15
DK170286A DK170286A (en) 1986-10-17

Family

ID=9318397

Family Applications (1)

Application Number Title Priority Date Filing Date
DK170286A DK170286A (en) 1985-04-16 1986-04-15 Roof element

Country Status (8)

Country Link
EP (1) EP0199661B1 (en)
JP (1) JPS61243042A (en)
AT (1) ATE43574T1 (en)
BR (1) BR8601674A (en)
CA (1) CA1249302A (en)
DE (1) DE3663659D1 (en)
DK (1) DK170286A (en)
FR (1) FR2580276B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8603578D0 (en) * 1986-02-13 1986-03-19 Ici Plc Aromatic ketone
FR2627486B1 (en) * 1988-02-18 1991-03-22 Atochem PROCESS FOR THE DIACYLATION OF COMPOUNDS COMPRISING TWO AROMATIC CORES
DE3806656A1 (en) * 1988-03-02 1989-09-14 Hoechst Ag METHOD FOR PRODUCING HALOGENIC AROMATIC COMPOUNDS
US5208383A (en) * 1991-06-14 1993-05-04 Mitsubishi Gas Chemical Company, Inc. Process for producing aromatic acylation product
JP3120813B2 (en) * 1991-06-14 2000-12-25 三菱瓦斯化学株式会社 Method for producing aromatic acylated product
TW306910B (en) * 1992-09-11 1997-06-01 Hoechst Ag

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU487535A1 (en) * 1974-02-25 1984-02-07 Всесоюзный Научно-Исследовательский И Проектный Институт Мономеров Process for preparing 4,4-diacetyl diphenyl
GB2030158B (en) * 1978-08-08 1982-12-01 Du Pont Polyesters derived from 3,4'-dihydroxybenzophenones or 3-hydroxy-4'-(4-hydroxyphenyl-) benzophenone and certain aromatic dicarboxylic acids and filaments thereof
US4276226A (en) * 1979-07-23 1981-06-30 E. I. Du Pont De Nemours And Company Methyl- and chloro- substituted aromatic diketodiols
US4269965A (en) * 1979-09-17 1981-05-26 E. I. Du Pont De Nemours And Company Aromatic polyester which forms optically anisotropic melts and filaments thereof
BE893790A (en) * 1981-07-08 1983-01-07 Raychem Corp PREPARATION OF AROMATIC KETONES

Also Published As

Publication number Publication date
ATE43574T1 (en) 1989-06-15
JPS61243042A (en) 1986-10-29
DE3663659D1 (en) 1989-07-06
EP0199661A1 (en) 1986-10-29
CA1249302A (en) 1989-01-24
FR2580276B1 (en) 1988-08-12
FR2580276A1 (en) 1986-10-17
BR8601674A (en) 1986-12-16
DK170286A (en) 1986-10-17
EP0199661B1 (en) 1989-05-31

Similar Documents

Publication Publication Date Title
ES2031188T3 (en) PROCEDURE FOR THE PRODUCTION OF POLYISOCYANATES CONTAINING ALOPHANATE GROUPS.
GB2180989B (en) Process for high temperature surface reactions in semiconductor material
GB8804230D0 (en) Advanced vapor compression heat pump cycle utilizing non-azeotropic working fluid mixture
GR852689B (en)
IE900888L (en) Process for the production of 1,2,2,2-tetrafluoroethyl¹difluoromethyl ether
GR3002384T3 (en) High purity process for the preparation of 4,6-diamino-1,3-benzenediol
IT1200806B (en) PROCEDURE FOR THE PREPARATION OF HYDROALFLUOROALKANE
ATE126697T1 (en) PROCESS FOR PRODUCTION OF A VISCOSITY-STABLE ANTICACID COMPOSITION.
DK170286D0 (en) PROCEDURE FOR THE PREPARATION OF 4,4'-DIACYL BIPHENYLES
GB8824571D0 (en) Chemical process
US4812544B1 (en)
GB8423636D0 (en) Analytical solutions
EP0173889A3 (en) Immunoamplifiers and processes for the extraction thereof
DE3562223D1 (en) Process for the preparation of compounds bearing a difluoromethylene or trifluoromethyl group
UA12649A (en) method of processing the remainder of vacuum distillation at the oil refinery
DE3563858D1 (en) Process for the preparation of l-alpha-aminoacids
DK622987A (en) PROCEDURE TO CONTACT GAS WITH FLUID
IN166983B (en)
GB2013701A (en) An Improved Process for the Preparation of Arylamino Derivatives of Anthraquinone
FR2575154B1 (en) PROCESS FOR THE PREPARATION OF ANTHRAQUINONE
DK163280C (en) STABILIZED INTERFERON PREPARATION, PROCEDURE FOR ITS PREPARATION AND USE OF THE PREPARATION
DK551384A (en) LORAZEP-CONTAINED SUBSTANCES AND PROCEDURES FOR ITS MANUFACTURING
DE3261288D1 (en) Process for the preparation of alpha, alpha-difluoroalkoxy or alpha, alphadifluoroalkylthiophenyl sulfones
FI904692A0 (en) CHEMICAL MELLAN PRODUCT.
JPS52144855A (en) Moving-heat device

Legal Events

Date Code Title Description
ATS Application withdrawn
B1 Patent granted (law 1993)
PBP Patent lapsed