JPS54122263A - Preparation of 1,4-dihydro-9,10-dihydroxyanthracene - Google Patents
Preparation of 1,4-dihydro-9,10-dihydroxyanthraceneInfo
- Publication number
- JPS54122263A JPS54122263A JP2776278A JP2776278A JPS54122263A JP S54122263 A JPS54122263 A JP S54122263A JP 2776278 A JP2776278 A JP 2776278A JP 2776278 A JP2776278 A JP 2776278A JP S54122263 A JPS54122263 A JP S54122263A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- dihydro
- tetrahydroanthraquinone
- isomerization
- pref
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the title compound useful as industrial chemicals such as pesticides, easily, in high purity and high rate of reaction, by the isomerization of 1,4,4a,9a-tetrahydroanthraquinone in an inert solvent in the presence of an aromatic sulfonic acid.
CONSTITUTION: The compound IV (1,4-dihydro-9,10-dihydroxyanthraquinone) is prepared by the isomerization of the compound III (1,4,4a,9a-tetrahydroanthraquinone) in the presence of 0.02W1 wt.% of an aromatic sulfonic acid, at 50W 150°C. The compound III is prepared by the Diels-Alder reaction of the compound I (1,4-naphthoquinone) with the compound II (butadiene) in an inert solvent (pref. aromatic hydrocarbons such as benzene, alkylbenzene, etc.). The compound I is pref. obtained by the successive and selective extraction of gas obtained by the catalytic gas phase oxidation of naphthalene, first with an aqueous solvent and then with an aromatic hydrocarbon.
USE: Accelerator for the digestion of pulp; antioxidant of rubber, raw material of anthrone, etc.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2776278A JPS54122263A (en) | 1978-03-13 | 1978-03-13 | Preparation of 1,4-dihydro-9,10-dihydroxyanthracene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2776278A JPS54122263A (en) | 1978-03-13 | 1978-03-13 | Preparation of 1,4-dihydro-9,10-dihydroxyanthracene |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54122263A true JPS54122263A (en) | 1979-09-21 |
Family
ID=12230011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2776278A Pending JPS54122263A (en) | 1978-03-13 | 1978-03-13 | Preparation of 1,4-dihydro-9,10-dihydroxyanthracene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54122263A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5950766A (en) * | 1982-09-17 | 1984-03-23 | Masayo Saitou | Self-force rotary prime mover with permanent magnet |
JPS5953435A (en) * | 1982-09-22 | 1984-03-28 | Kawasaki Kasei Chem Ltd | Preparation of 1,4-dihydroanthrahydroquinone or anthraquinone |
JP2005097473A (en) * | 2003-09-26 | 2005-04-14 | Japan Epoxy Resin Kk | New epoxy compound, method for producing the same, curable epoxy resin composition and cured product thereof |
JP2005113084A (en) * | 2003-10-10 | 2005-04-28 | Japan Epoxy Resin Kk | Epoxy resin composition for sealing semiconductor and semiconductor device using the same |
JPWO2005085316A1 (en) * | 2004-03-03 | 2007-08-09 | 日立化成工業株式会社 | Epoxy resin molding material for sealing and electronic component device |
US7304120B2 (en) * | 2003-09-26 | 2007-12-04 | Japan Epoxy Resins Co., Ltd. | Epoxy compound, preparation method thereof, and use thereof |
EP1784472A4 (en) * | 2004-06-28 | 2008-11-19 | Commw Scient Ind Res Org | Oxygen scavenging composition and method for making same |
-
1978
- 1978-03-13 JP JP2776278A patent/JPS54122263A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5950766A (en) * | 1982-09-17 | 1984-03-23 | Masayo Saitou | Self-force rotary prime mover with permanent magnet |
JPS5953435A (en) * | 1982-09-22 | 1984-03-28 | Kawasaki Kasei Chem Ltd | Preparation of 1,4-dihydroanthrahydroquinone or anthraquinone |
JP2005097473A (en) * | 2003-09-26 | 2005-04-14 | Japan Epoxy Resin Kk | New epoxy compound, method for producing the same, curable epoxy resin composition and cured product thereof |
US7304120B2 (en) * | 2003-09-26 | 2007-12-04 | Japan Epoxy Resins Co., Ltd. | Epoxy compound, preparation method thereof, and use thereof |
US7307128B2 (en) | 2003-09-26 | 2007-12-11 | Japan Epoxy Resins Co., Ltd. | Epoxy compound, preparation method thereof, and use thereof |
JP2005113084A (en) * | 2003-10-10 | 2005-04-28 | Japan Epoxy Resin Kk | Epoxy resin composition for sealing semiconductor and semiconductor device using the same |
JPWO2005085316A1 (en) * | 2004-03-03 | 2007-08-09 | 日立化成工業株式会社 | Epoxy resin molding material for sealing and electronic component device |
US7846998B2 (en) | 2004-03-03 | 2010-12-07 | Hitachi Chemical Co., Ltd. | Sealant epoxy-resin molding material, and electronic component device |
TWI381003B (en) * | 2004-03-03 | 2013-01-01 | Hitachi Chemical Co Ltd | Sealing epoxy resin forming materials and electronic parts |
EP1784472A4 (en) * | 2004-06-28 | 2008-11-19 | Commw Scient Ind Res Org | Oxygen scavenging composition and method for making same |
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