JPS55102562A - Process for making indole - Google Patents

Process for making indole

Info

Publication number
JPS55102562A
JPS55102562A JP965679A JP965679A JPS55102562A JP S55102562 A JPS55102562 A JP S55102562A JP 965679 A JP965679 A JP 965679A JP 965679 A JP965679 A JP 965679A JP S55102562 A JPS55102562 A JP S55102562A
Authority
JP
Japan
Prior art keywords
silica
indole
catalyst
manganese oxide
manganese
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
JP965679A
Other languages
Japanese (ja)
Other versions
JPS5938947B2 (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 JP965679A priority Critical patent/JPS5938947B2/en
Publication of JPS55102562A publication Critical patent/JPS55102562A/en
Publication of JPS5938947B2 publication Critical patent/JPS5938947B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Indole Compounds (AREA)

Abstract

PURPOSE: In the production of indole, which is used as a raw material for medicines and perfumes, by the reaction between phenylhydrazine and acetaldehyde or paraldehyde, silica-manganese oxide is used as a long-life catalyst to increase the yield.
CONSTITUTION: In the production of indole by the reaction of phenylhydrazine with acetaldehyde or paraldehyde, silica-manganese oxide is used as a catalyst. The silica-manganese oxide catalyst is obtained by a usual method. For example, water glass is dropped into aqueous manganese nitrate under stirring to precipitate silica gel, while an alkali is added to deposite the gel of manganese hydroxide, and they are well mixed, washed, filtered, formed, dried and calcined.
COPYRIGHT: (C)1980,JPO&Japio
JP965679A 1979-02-01 1979-02-01 Manufacturing method of indole Expired JPS5938947B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP965679A JPS5938947B2 (en) 1979-02-01 1979-02-01 Manufacturing method of indole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP965679A JPS5938947B2 (en) 1979-02-01 1979-02-01 Manufacturing method of indole

Publications (2)

Publication Number Publication Date
JPS55102562A true JPS55102562A (en) 1980-08-05
JPS5938947B2 JPS5938947B2 (en) 1984-09-20

Family

ID=11726248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP965679A Expired JPS5938947B2 (en) 1979-02-01 1979-02-01 Manufacturing method of indole

Country Status (1)

Country Link
JP (1) JPS5938947B2 (en)

Also Published As

Publication number Publication date
JPS5938947B2 (en) 1984-09-20

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