JPS57139064A - Preparation of indole - Google Patents

Preparation of indole

Info

Publication number
JPS57139064A
JPS57139064A JP56025001A JP2500181A JPS57139064A JP S57139064 A JPS57139064 A JP S57139064A JP 56025001 A JP56025001 A JP 56025001A JP 2500181 A JP2500181 A JP 2500181A JP S57139064 A JPS57139064 A JP S57139064A
Authority
JP
Japan
Prior art keywords
catalyst
oxide
compound
indole
mixture
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
JP56025001A
Other languages
Japanese (ja)
Other versions
JPS6121215B2 (en
Inventor
Sukeishi Suyama
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko 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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP56025001A priority Critical patent/JPS57139064A/en
Publication of JPS57139064A publication Critical patent/JPS57139064A/en
Publication of JPS6121215B2 publication Critical patent/JPS6121215B2/ja
Granted 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

  • Indole Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To obtain indole in high yield in high selectivity, by subjecting o-ethynylaniline to ring formation through dehydration using a catalyst comprising an oxide of W or Mn or a catalyst comprising both the elements in the form of compound or mixture.
CONSTITUTION: Using a catalyst comprising an oxide of W or Mn or one comprising both the elements in the form of compound or mixture, o-ethynylaniline is reacted with an O2-containing gas in gaseous phase, to prepare indole. The catalyst comprising W and Mn in the form of compound or mixture provides extremely excellent result. The amount of the oxide in the catalyst is preferably 5W50wt%, especially 5W20wt%. An atom ratio of W to Mn of the coexistence type is (1/1)W(10/1), preferably (2/1)W(3/1). The reaction temperature is 550W 700°C, preferably 550W650°C.
COPYRIGHT: (C)1982,JPO&Japio
JP56025001A 1981-02-24 1981-02-24 Preparation of indole Granted JPS57139064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56025001A JPS57139064A (en) 1981-02-24 1981-02-24 Preparation of indole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56025001A JPS57139064A (en) 1981-02-24 1981-02-24 Preparation of indole

Publications (2)

Publication Number Publication Date
JPS57139064A true JPS57139064A (en) 1982-08-27
JPS6121215B2 JPS6121215B2 (en) 1986-05-26

Family

ID=12153720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56025001A Granted JPS57139064A (en) 1981-02-24 1981-02-24 Preparation of indole

Country Status (1)

Country Link
JP (1) JPS57139064A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124777U (en) * 1985-01-25 1986-08-06
JPH0429302Y2 (en) * 1986-05-02 1992-07-16
JPS62201315U (en) * 1986-06-11 1987-12-22
JPS632011U (en) * 1986-06-19 1988-01-08

Also Published As

Publication number Publication date
JPS6121215B2 (en) 1986-05-26

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