RO93222B1 - Process for preparing 1,4-dihydroxy-2-naphthalic acid - Google Patents
Process for preparing 1,4-dihydroxy-2-naphthalic acidInfo
- Publication number
- RO93222B1 RO93222B1 RO122686A RO12268686A RO93222B1 RO 93222 B1 RO93222 B1 RO 93222B1 RO 122686 A RO122686 A RO 122686A RO 12268686 A RO12268686 A RO 12268686A RO 93222 B1 RO93222 B1 RO 93222B1
- Authority
- RO
- Romania
- Prior art keywords
- dihydroxy
- preparing
- naphthalic acid
- sodium
- hydrolysis
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu pentru obtinerea acidului 1,4-dixidroxi-2-naftoic, prin condensarea dietilftalatului cu dietilsuccinat urmata de hidroliza intermediarului forma conform caruia, reactia de condensare are loc la temperatura de 30...120 degree C si la presiune atmosferica în mediul de etilat de sodiu, iar hidroliza are loc cu hidroxid de sodiu la temperatura ambianta în prezenta ditionului de sodiu.The invention relates to a process for the preparation of 1,4-dihydroxy-2-naphthoic acid by condensation of diethyl phthalate with diethyl succinate followed by hydrolysis of the intermediate according to which the condensation reaction takes place at a temperature of 30 to 120 ° C and under pressure atmospheric in the sodium ethylate medium and the hydrolysis is carried out with sodium hydroxide at ambient temperature in the presence of sodium.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO122686A RO93222B1 (en) | 1986-03-22 | 1986-03-22 | Process for preparing 1,4-dihydroxy-2-naphthalic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO122686A RO93222B1 (en) | 1986-03-22 | 1986-03-22 | Process for preparing 1,4-dihydroxy-2-naphthalic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
RO93222A2 RO93222A2 (en) | 1987-12-30 |
RO93222B1 true RO93222B1 (en) | 1987-12-31 |
Family
ID=20119182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO122686A RO93222B1 (en) | 1986-03-22 | 1986-03-22 | Process for preparing 1,4-dihydroxy-2-naphthalic acid |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO93222B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003083063A2 (en) * | 2002-03-22 | 2003-10-09 | Triad Therapeutics, Inc. | Common ligand mimics: naphtoates |
-
1986
- 1986-03-22 RO RO122686A patent/RO93222B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
RO93222A2 (en) | 1987-12-30 |
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