JPS5630928A - Production of styrene or benzene neucleus-substituted styrene - Google Patents

Production of styrene or benzene neucleus-substituted styrene

Info

Publication number
JPS5630928A
JPS5630928A JP10680979A JP10680979A JPS5630928A JP S5630928 A JPS5630928 A JP S5630928A JP 10680979 A JP10680979 A JP 10680979A JP 10680979 A JP10680979 A JP 10680979A JP S5630928 A JPS5630928 A JP S5630928A
Authority
JP
Japan
Prior art keywords
acid
styrene
formula
organic sulfonic
diarylethane
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.)
Pending
Application number
JP10680979A
Other languages
Japanese (ja)
Inventor
Tamio Shirafuji
Toyomitsu Shimizu
Masazou Betsupu
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP10680979A priority Critical patent/JPS5630928A/en
Publication of JPS5630928A publication Critical patent/JPS5630928A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: 1,1-Diarylethane is thermally decomposed in liquid phase in the presence of a catalyst of inorganic acid or organic sulfonic acid to produce the titled compound in high yield, which is used as a starting material for various kinds of plastics or for fine chemistry such as agricultural chemicals.
CONSTITUTION: The thermal decomposition of 1,1-diarylethane of formula I (R1W R6 are H, methyl) such as 1,1-ditolylethane in the presence of a catatlyst of inorganic acid or organic sulfonic acid is effected in liquid phase under normal pressure or reduced pressure, preferably at 250W325°C at a residential time of 0.01W100hr.g. Cat/g to produce styrene or benzene nucleus-substituted styrene of formula II-III. The inorganic acid or organic sulfonic acid is, e.g., phosphoric acid such as orthophosphoric acid, sulfuric acid, heteropolyphosphoric acid, phosphomolybdenic acid or p-toluenesulfonic acid. The amount is 0.001W100, preferably 0.005W10 times the molar quantity of the compound of formula I.
COPYRIGHT: (C)1981,JPO&Japio
JP10680979A 1979-08-21 1979-08-21 Production of styrene or benzene neucleus-substituted styrene Pending JPS5630928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10680979A JPS5630928A (en) 1979-08-21 1979-08-21 Production of styrene or benzene neucleus-substituted styrene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10680979A JPS5630928A (en) 1979-08-21 1979-08-21 Production of styrene or benzene neucleus-substituted styrene

Publications (1)

Publication Number Publication Date
JPS5630928A true JPS5630928A (en) 1981-03-28

Family

ID=14443170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10680979A Pending JPS5630928A (en) 1979-08-21 1979-08-21 Production of styrene or benzene neucleus-substituted styrene

Country Status (1)

Country Link
JP (1) JPS5630928A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124527A (en) * 1984-07-14 1986-02-03 Nippon Petrochem Co Ltd P-isobutylstyrene
JPS6263226A (en) * 1985-09-02 1987-03-19 Daikin Mfg Co Ltd Clutch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124527A (en) * 1984-07-14 1986-02-03 Nippon Petrochem Co Ltd P-isobutylstyrene
JPH0430934B2 (en) * 1984-07-14 1992-05-25
JPS6263226A (en) * 1985-09-02 1987-03-19 Daikin Mfg Co Ltd Clutch

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