JPS55102562A - Process for making indole - Google Patents
Process for making indoleInfo
- 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
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
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) |
-
1979
- 1979-02-01 JP JP965679A patent/JPS5938947B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5938947B2 (en) | 1984-09-20 |
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