RO92960B1 - Process for obtaining 2-hydroxy-1-naphthaldehyde - Google Patents
Process for obtaining 2-hydroxy-1-naphthaldehydeInfo
- Publication number
- RO92960B1 RO92960B1 RO122156A RO12215686A RO92960B1 RO 92960 B1 RO92960 B1 RO 92960B1 RO 122156 A RO122156 A RO 122156A RO 12215686 A RO12215686 A RO 12215686A RO 92960 B1 RO92960 B1 RO 92960B1
- Authority
- RO
- Romania
- Prior art keywords
- naphthaldehyde
- hydroxy
- obtaining
- reaction mass
- sulfuric acid
- Prior art date
Links
- NTCCNERMXRIPTR-UHFFFAOYSA-N 2-hydroxy-1-naphthaldehyde Chemical compound C1=CC=CC2=C(C=O)C(O)=CC=C21 NTCCNERMXRIPTR-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 2
- 229950011260 betanaphthol Drugs 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a 2-hidroxi-1-naftaldehidei prin reactia beta -naftolului cu hexametilentetramina în mediu de acid acetic si acid sulfuric la temperatura de 90...100 degree C, dupa care masa de reactie se dilueaza cu apa, constînd în aceea ca acidul sulfuric utilizat are concentratie 50%, iar dupa diluarea masei de reactie obtinute, se neutralizeaza cu o solutie de NaOH 25...30/% pîna la ph = 2,5...3.The invention relates to a process for the preparation of 2-hydroxy-1-naphthaldehyde by reacting beta-naphthol with hexamethylenetetramine in acetic acid and sulfuric acid medium at a temperature of 90-100 ° C, after which the reaction mass is diluted with water, in that the sulfuric acid used is 50% concentration, and after dilution of the reaction mass, it is neutralized with a NaOH solution of 25 ... 30% to pH = 2.5 ... 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO122156A RO92960B1 (en) | 1986-02-07 | 1986-02-07 | Process for obtaining 2-hydroxy-1-naphthaldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO122156A RO92960B1 (en) | 1986-02-07 | 1986-02-07 | Process for obtaining 2-hydroxy-1-naphthaldehyde |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO92960A2 RO92960A2 (en) | 1987-11-30 |
| RO92960B1 true RO92960B1 (en) | 1987-12-01 |
Family
ID=20118988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO122156A RO92960B1 (en) | 1986-02-07 | 1986-02-07 | Process for obtaining 2-hydroxy-1-naphthaldehyde |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO92960B1 (en) |
-
1986
- 1986-02-07 RO RO122156A patent/RO92960B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO92960A2 (en) | 1987-11-30 |
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