JPS5612332A - Preparation of aromatic dialdehyde - Google Patents
Preparation of aromatic dialdehydeInfo
- Publication number
- JPS5612332A JPS5612332A JP8733579A JP8733579A JPS5612332A JP S5612332 A JPS5612332 A JP S5612332A JP 8733579 A JP8733579 A JP 8733579A JP 8733579 A JP8733579 A JP 8733579A JP S5612332 A JPS5612332 A JP S5612332A
- Authority
- JP
- Japan
- Prior art keywords
- xylene
- mixture
- chlorinated
- aromatic dialdehyde
- reacted
- 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
Abstract
PURPOSE: To obtain the titled compound useful as a raw material for a variety of polymers, agricultural chemicals, medicines, etc., economically and in high yield, by the chlorination of the side chains of xylene in the first stage, to prepare a mixture of chlorinated xylenes having 2W4 Cl atoms, and by its reaction with nitric acid in the second stage.
CONSTITUTION: Chlorine in an amount of 2W4mol is reacted with one mole of xylene, to prepare a chlorinated xylene mixture having 2W4, preferably 2.5W3.5, chlorine atoms, on an average, per one xylene molecule in its side chains, and the resulting mixture is reacted with nitric acid in an amount of 0.2W20mol, especially 1.5W10mol based on the chlorinated xylene mixture, to obtain an aromatic dialdehyde.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8733579A JPS5612332A (en) | 1979-07-10 | 1979-07-10 | Preparation of aromatic dialdehyde |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8733579A JPS5612332A (en) | 1979-07-10 | 1979-07-10 | Preparation of aromatic dialdehyde |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5612332A true JPS5612332A (en) | 1981-02-06 |
JPS5735889B2 JPS5735889B2 (en) | 1982-07-31 |
Family
ID=13911994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8733579A Granted JPS5612332A (en) | 1979-07-10 | 1979-07-10 | Preparation of aromatic dialdehyde |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612332A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797844B2 (en) * | 2000-12-14 | 2004-09-28 | Daicel Chemical Industries, Ltd. | Process for producing phthalaldehyde |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6422390U (en) * | 1987-07-31 | 1989-02-06 | ||
JPH0244286A (en) * | 1988-08-04 | 1990-02-14 | Rhythm Watch Co Ltd | Sound time-piece with snooze |
-
1979
- 1979-07-10 JP JP8733579A patent/JPS5612332A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797844B2 (en) * | 2000-12-14 | 2004-09-28 | Daicel Chemical Industries, Ltd. | Process for producing phthalaldehyde |
Also Published As
Publication number | Publication date |
---|---|
JPS5735889B2 (en) | 1982-07-31 |
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