JPS557235A - Preparation of polycyclic aromatic aldehyde - Google Patents
Preparation of polycyclic aromatic aldehydeInfo
- Publication number
- JPS557235A JPS557235A JP7951878A JP7951878A JPS557235A JP S557235 A JPS557235 A JP S557235A JP 7951878 A JP7951878 A JP 7951878A JP 7951878 A JP7951878 A JP 7951878A JP S557235 A JPS557235 A JP S557235A
- Authority
- JP
- Japan
- Prior art keywords
- soluble
- mole
- polycyclic aromatic
- anhydride
- salt
- 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
- -1 polycyclic aromatic aldehyde Chemical class 0.000 title abstract 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- QPUYECUOLPXSFR-UHFFFAOYSA-N alpha-methyl-naphthalene Natural products C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 abstract 2
- 150000008064 anhydrides Chemical class 0.000 abstract 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052794 bromium Inorganic materials 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 150000004671 saturated fatty acids Chemical class 0.000 abstract 2
- 125000001424 substituent group Chemical group 0.000 abstract 2
- 125000003172 aldehyde group Chemical group 0.000 abstract 1
- 125000003277 amino group Chemical group 0.000 abstract 1
- 238000006701 autoxidation reaction Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000012847 fine chemical Substances 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: To obtain the title compound useful as a raw material for the synthesis of fine chemicals in high yield at low cost, by autoxidizing a polycyclic aromatic in the liquid phase in the presence of specific amounts of a soluble Co salt, a lower saturated fatty acid and/or its anhydride, and a soluble bromine compound under specific conditions.
CONSTITUTION: One mole of a polycyclic aromatic compound, e.g. monomethylnaphthalene, having one or more methyl groups directly bonded to the benzene nucleus free from substituents, e.g. hydroxyl or amino groups to inhibit the liquid- phase autoxidation, and easily oxidizable substituents, e.g. aldehyde groups, is autoxidized in the presence of a soluble bromine compound and 1.0 mole or more of a lower saturated fatty acid and/or its anhydride, e.g. acetic acid, and 0.005 mole or more of a soluble Co salt as a catalyst at 30W120°C. At a conversion of 85% or less based on the raw material, the reaction is stopped to give the title compound.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7951878A JPS557235A (en) | 1978-06-30 | 1978-06-30 | Preparation of polycyclic aromatic aldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7951878A JPS557235A (en) | 1978-06-30 | 1978-06-30 | Preparation of polycyclic aromatic aldehyde |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS557235A true JPS557235A (en) | 1980-01-19 |
| JPS5625216B2 JPS5625216B2 (en) | 1981-06-11 |
Family
ID=13692190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7951878A Granted JPS557235A (en) | 1978-06-30 | 1978-06-30 | Preparation of polycyclic aromatic aldehyde |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS557235A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5516311A (en) * | 1993-09-17 | 1996-05-14 | Yazaki Corporation | Electric connector terminal |
| US5904600A (en) * | 1997-01-17 | 1999-05-18 | Yazaki Corporation | Clamp-type terminal |
| US7435463B2 (en) | 2005-07-29 | 2008-10-14 | Fujicopian Co., Ltd. | Transfer medium for transferring protective layer |
| JP2008293693A (en) * | 2007-05-22 | 2008-12-04 | Sumitomo Wiring Syst Ltd | Terminal fitting |
| JP2009117085A (en) * | 2007-11-02 | 2009-05-28 | Autonetworks Technologies Ltd | Crimp terminal, electric wire with terminal, and manufacturing method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165613U (en) * | 1982-04-29 | 1983-11-04 | 日本精機株式会社 | Press knob dustproof device |
| JPS593310U (en) * | 1982-06-29 | 1984-01-10 | 日本精機株式会社 | Dustproof/waterproof device for press knob |
| JPS59176921U (en) * | 1983-05-16 | 1984-11-27 | 株式会社 本田ロツク | Waterproof device for instruments |
| EP3705175B1 (en) | 2017-10-30 | 2025-01-29 | Nihon Spindle Manufacturing Co., Ltd. | Slurry manufacturing device and operating method for slurry manufacturing device |
| JP7334049B2 (en) | 2019-03-25 | 2023-08-28 | 日本スピンドル製造株式会社 | Slurry production equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU258298A1 (en) * | ||||
| US3047616A (en) * | 1959-09-28 | 1962-07-31 | Sun Oil Co | Liquid phase oxidation of alkyl naphthalenes to aldehydes and esters |
| JPS535132A (en) * | 1976-07-05 | 1978-01-18 | Mitsubishi Chem Ind Ltd | Preparation of benzaldehyde |
-
1978
- 1978-06-30 JP JP7951878A patent/JPS557235A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU258298A1 (en) * | ||||
| US3047616A (en) * | 1959-09-28 | 1962-07-31 | Sun Oil Co | Liquid phase oxidation of alkyl naphthalenes to aldehydes and esters |
| JPS535132A (en) * | 1976-07-05 | 1978-01-18 | Mitsubishi Chem Ind Ltd | Preparation of benzaldehyde |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5516311A (en) * | 1993-09-17 | 1996-05-14 | Yazaki Corporation | Electric connector terminal |
| US5904600A (en) * | 1997-01-17 | 1999-05-18 | Yazaki Corporation | Clamp-type terminal |
| US7435463B2 (en) | 2005-07-29 | 2008-10-14 | Fujicopian Co., Ltd. | Transfer medium for transferring protective layer |
| JP2008293693A (en) * | 2007-05-22 | 2008-12-04 | Sumitomo Wiring Syst Ltd | Terminal fitting |
| JP2009117085A (en) * | 2007-11-02 | 2009-05-28 | Autonetworks Technologies Ltd | Crimp terminal, electric wire with terminal, and manufacturing method thereof |
| US8070536B2 (en) | 2007-11-02 | 2011-12-06 | Autonetworks Technologies, Ltd. | Crimp terminal, terminal-provided wire, and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5625216B2 (en) | 1981-06-11 |
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