JPS567761A - Synthesis of indole - Google Patents
Synthesis of indoleInfo
- Publication number
- JPS567761A JPS567761A JP8298479A JP8298479A JPS567761A JP S567761 A JPS567761 A JP S567761A JP 8298479 A JP8298479 A JP 8298479A JP 8298479 A JP8298479 A JP 8298479A JP S567761 A JPS567761 A JP S567761A
- Authority
- JP
- Japan
- Prior art keywords
- magnesia
- silica
- indole
- catalyst
- lowering
- 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
Links
Landscapes
- Indole Compounds (AREA)
Abstract
PURPOSE: To obtain indole, useful as a starting material of perfumes, dyes, pharmaceuticals and tryptophan, in high yield, without lowering the catalytic activity, by heating acetaldehyde, phenylhydrazone together with a silica-magnesia catalyst.
CONSTITUTION: Acetaldehyde phenylhydrazone is heated preferably at 230W320°C together with a silica-magnesia catalyst, containing preferably 5W60%, esp. 10W 50% at magnecia, to give indole in high yield without lowering the catalytic activity. This effect is based on the synergistic effect of the development of particular oxidizing sites and the increase of the surface area, which are characteristic to the silica- magnesia two-component oxide. The above catalyst is prepared from stabilized silica sol and fine powder of magnesia.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8298479A JPS567761A (en) | 1979-06-29 | 1979-06-29 | Synthesis of indole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8298479A JPS567761A (en) | 1979-06-29 | 1979-06-29 | Synthesis of indole |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS567761A true JPS567761A (en) | 1981-01-27 |
Family
ID=13789473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8298479A Pending JPS567761A (en) | 1979-06-29 | 1979-06-29 | Synthesis of indole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS567761A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100502754B1 (en) * | 1996-03-29 | 2005-09-26 | 가부시키가이샤 구라레 | Method for treating solution of organic compound |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5553269A (en) * | 1978-10-16 | 1980-04-18 | Mitsui Toatsu Chem Inc | Preparation of indole |
-
1979
- 1979-06-29 JP JP8298479A patent/JPS567761A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5553269A (en) * | 1978-10-16 | 1980-04-18 | Mitsui Toatsu Chem Inc | Preparation of indole |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100502754B1 (en) * | 1996-03-29 | 2005-09-26 | 가부시키가이샤 구라레 | Method for treating solution of organic compound |
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