JPS5692235A - Novel preparation of polynuclear polyphenol compound - Google Patents
Novel preparation of polynuclear polyphenol compoundInfo
- Publication number
- JPS5692235A JPS5692235A JP16939879A JP16939879A JPS5692235A JP S5692235 A JPS5692235 A JP S5692235A JP 16939879 A JP16939879 A JP 16939879A JP 16939879 A JP16939879 A JP 16939879A JP S5692235 A JPS5692235 A JP S5692235A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- esp
- polynuclear polyphenol
- polyalkylbenzene
- dialkylphenol
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as a rubber stabilizer, etc., economically, by reacting a polyalkylbenzene with a 2,6-dialkylphenol and formaldehyde or its oligomer in the presence of an acidic catalyst.
CONSTITUTION: A polynuclear polyphenol of formula III (R1 is lower alkyl; R2 and R3 are 1W8C alkyl; n is 3 or 4) useful as a stabilizer of rubber, gasoline, lubricating oil, polyolefin, etc., or a color developing agent of heat-sensitive copying paper, is prepared from a polyalkylbenzene of formula I, in one step, economically in high yield, by reacting (A) a compound of formula I, esp. 1,3,5-trimethylbenzene, (B) a 2,6-dialkylphenol of formula II, esp. 2,6-di-tert-butylphenol, and (C) formaldehyde or its oligomer, in the presence of an acidic catalyst, esp. sulfuric acid and peferably a lower aliphatic monohydric alcohol.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16939879A JPS5692235A (en) | 1979-12-27 | 1979-12-27 | Novel preparation of polynuclear polyphenol compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16939879A JPS5692235A (en) | 1979-12-27 | 1979-12-27 | Novel preparation of polynuclear polyphenol compound |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5692235A true JPS5692235A (en) | 1981-07-25 |
JPS6220969B2 JPS6220969B2 (en) | 1987-05-11 |
Family
ID=15885853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16939879A Granted JPS5692235A (en) | 1979-12-27 | 1979-12-27 | Novel preparation of polynuclear polyphenol compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5692235A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102399136A (en) * | 2011-10-18 | 2012-04-04 | 池州万维化工有限公司 | Preparation method for 1,3,5-trimethyl-2,4,6-tri(3,5-di-tert-butyl-4-hydroxybenzyl)benzene as hindered phenol antioxidant |
-
1979
- 1979-12-27 JP JP16939879A patent/JPS5692235A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102399136A (en) * | 2011-10-18 | 2012-04-04 | 池州万维化工有限公司 | Preparation method for 1,3,5-trimethyl-2,4,6-tri(3,5-di-tert-butyl-4-hydroxybenzyl)benzene as hindered phenol antioxidant |
Also Published As
Publication number | Publication date |
---|---|
JPS6220969B2 (en) | 1987-05-11 |
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