JPS565459A - Preparation of indole - Google Patents

Preparation of indole

Info

Publication number
JPS565459A
JPS565459A JP8011179A JP8011179A JPS565459A JP S565459 A JPS565459 A JP S565459A JP 8011179 A JP8011179 A JP 8011179A JP 8011179 A JP8011179 A JP 8011179A JP S565459 A JPS565459 A JP S565459A
Authority
JP
Japan
Prior art keywords
aniline
indole
hydroxyethylaniline
raw material
preparation
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
JP8011179A
Other languages
Japanese (ja)
Other versions
JPH0146508B2 (en
Inventor
Tadamitsu Kiyoura
Yasuo Kogure
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 JP8011179A priority Critical patent/JPS565459A/en
Publication of JPS565459A publication Critical patent/JPS565459A/en
Publication of JPH0146508B2 publication Critical patent/JPH0146508B2/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

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

Abstract

PURPOSE: To suppress the by-product of aniline and to improve the selectivity of indole, by diluting a raw material with aniline in one-step direct preparation of indole through heating N-β-hydroxyethylaniline in the pesence of a catalyst.
CONSTITUTION: N-β-hydroxyethylaniline is heated in the presence of a catalyst to give indole industrially advantageously by one-step direct method. In the reaction, the raw material, N-β-hydroxyethylaniline is diluted with aniline and reacted. A concentration of the raw material in aniline is 5W50wt%, preferably 10W30wt%. The raw material is obtained by reacting excess aniline with ethylene oxide, exists generally as an aniline solution containing 10W20wt% of N-β-hydroxyethylaniline. Therefore the synthetic solution can be used for indole synthetic reaction and is suitable for industrial preparation.
COPYRIGHT: (C)1981,JPO&Japio
JP8011179A 1979-06-27 1979-06-27 Preparation of indole Granted JPS565459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8011179A JPS565459A (en) 1979-06-27 1979-06-27 Preparation of indole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8011179A JPS565459A (en) 1979-06-27 1979-06-27 Preparation of indole

Publications (2)

Publication Number Publication Date
JPS565459A true JPS565459A (en) 1981-01-20
JPH0146508B2 JPH0146508B2 (en) 1989-10-09

Family

ID=13709066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8011179A Granted JPS565459A (en) 1979-06-27 1979-06-27 Preparation of indole

Country Status (1)

Country Link
JP (1) JPS565459A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916236A (en) * 1982-07-08 1990-04-10 Mitsui Toatsu Chemicals, Inc. Preparation of indoles by cyclization
CN107445881A (en) * 2017-08-11 2017-12-08 重庆华歌生物化学有限公司 A kind of preparation method and applications of Benzazole compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916236A (en) * 1982-07-08 1990-04-10 Mitsui Toatsu Chemicals, Inc. Preparation of indoles by cyclization
CN107445881A (en) * 2017-08-11 2017-12-08 重庆华歌生物化学有限公司 A kind of preparation method and applications of Benzazole compounds

Also Published As

Publication number Publication date
JPH0146508B2 (en) 1989-10-09

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