JPS5767543A - Preparation of 2-amino-4,6-dichloro-5-methylphenol - Google Patents

Preparation of 2-amino-4,6-dichloro-5-methylphenol

Info

Publication number
JPS5767543A
JPS5767543A JP55144034A JP14403480A JPS5767543A JP S5767543 A JPS5767543 A JP S5767543A JP 55144034 A JP55144034 A JP 55144034A JP 14403480 A JP14403480 A JP 14403480A JP S5767543 A JPS5767543 A JP S5767543A
Authority
JP
Japan
Prior art keywords
dichloro
titled compound
pressure
nitro
phenol
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
JP55144034A
Other languages
Japanese (ja)
Inventor
Shigemi Ogami
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.)
YODOGAWA PHARMA
YODOGAWA SEIYAKU KK
Original Assignee
YODOGAWA PHARMA
YODOGAWA SEIYAKU KK
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 YODOGAWA PHARMA, YODOGAWA SEIYAKU KK filed Critical YODOGAWA PHARMA
Priority to JP55144034A priority Critical patent/JPS5767543A/en
Publication of JPS5767543A publication Critical patent/JPS5767543A/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

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

Abstract

PURPOSE: To obtain the titled compound which is an intermediate for a photographic chemical safely and easily in high purity and yield, by reducing 2-nitro-4, 6- dichloro-5-methyl-phenol in an aqueous solution of a caustic alkali in the presence of a catalyst under specific conditions.
CONSTITUTION: 2-Nitro-4,6-dichloro-5-methyl-phenol in an aqueous solution of a caustic alkali in an equivalent amount or more is reacted with hydrogen in the resence of a Rney nickel catalyst to give the titled compound. The reaction is carried out at a pressure ≤3kg/cm2 (gauge pressure), preferably ordinary pressure, and 40°C or below. The operation is carried out easily and safely due to the absence of organic solvents. The titled compound of high grade can be obtained almost quantitatively without forming by-products.
COPYRIGHT: (C)1982,JPO&Japio
JP55144034A 1980-10-14 1980-10-14 Preparation of 2-amino-4,6-dichloro-5-methylphenol Pending JPS5767543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144034A JPS5767543A (en) 1980-10-14 1980-10-14 Preparation of 2-amino-4,6-dichloro-5-methylphenol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144034A JPS5767543A (en) 1980-10-14 1980-10-14 Preparation of 2-amino-4,6-dichloro-5-methylphenol

Publications (1)

Publication Number Publication Date
JPS5767543A true JPS5767543A (en) 1982-04-24

Family

ID=15352778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144034A Pending JPS5767543A (en) 1980-10-14 1980-10-14 Preparation of 2-amino-4,6-dichloro-5-methylphenol

Country Status (1)

Country Link
JP (1) JPS5767543A (en)

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