JPS5566530A - Preparation of hydroquinone - Google Patents

Preparation of hydroquinone

Info

Publication number
JPS5566530A
JPS5566530A JP13980878A JP13980878A JPS5566530A JP S5566530 A JPS5566530 A JP S5566530A JP 13980878 A JP13980878 A JP 13980878A JP 13980878 A JP13980878 A JP 13980878A JP S5566530 A JPS5566530 A JP S5566530A
Authority
JP
Japan
Prior art keywords
isopropenylphenol
aqueous solution
hydroquinone
equimolar amount
peroxide
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
JP13980878A
Other languages
Japanese (ja)
Inventor
Nobukatsu Kato
Tsutomu Takase
Yoshio Morimoto
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP13980878A priority Critical patent/JPS5566530A/en
Priority to US06/086,666 priority patent/US4258219A/en
Priority to DE19792943428 priority patent/DE2943428A1/en
Publication of JPS5566530A publication Critical patent/JPS5566530A/en
Pending legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the title compound, useful as a photographic developer, an antioxidant for rubber and a polymerization inhibitor, stably, by the oxidation of p-isopropenylphenol, while decomposing the unreacted oxidizing agent with more than equimolar amount of SO2 gas or its aqueous solution.
CONSTITUTION: p-Isopropenylphenol is oxidized with hydrogen peroxide or an orgainc peroxide in a water-insoluble high b.p. polar solvent in the presence of a strong acid to give hydroquinone. The unreacted peroxide is decomposed after the reaction by adding more than equimolar amount of SO2 gas or its aqueous solution to the reaction mixture. The addition of SO2 or its aqueous solution in more than the equimolar amount is useful not only for removing the residual hydrogen peroxide but also for the reduction of the undecomposed hydroperoxide of p-isopropenylphenol and for inhibiting the oxidation of hydroquinone in the reaction mixture. However a large excess amount is not preferable.
COPYRIGHT: (C)1980,JPO&Japio
JP13980878A 1978-10-27 1978-11-15 Preparation of hydroquinone Pending JPS5566530A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13980878A JPS5566530A (en) 1978-11-15 1978-11-15 Preparation of hydroquinone
US06/086,666 US4258219A (en) 1978-10-27 1979-10-19 Process for producing hydroquinone
DE19792943428 DE2943428A1 (en) 1978-10-27 1979-10-26 METHOD FOR PRODUCING HYDROQUINONE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13980878A JPS5566530A (en) 1978-11-15 1978-11-15 Preparation of hydroquinone

Publications (1)

Publication Number Publication Date
JPS5566530A true JPS5566530A (en) 1980-05-20

Family

ID=15253910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13980878A Pending JPS5566530A (en) 1978-10-27 1978-11-15 Preparation of hydroquinone

Country Status (1)

Country Link
JP (1) JPS5566530A (en)

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