JPS5616446A - Novel derivative of terephthalic acid and its preparation - Google Patents

Novel derivative of terephthalic acid and its preparation

Info

Publication number
JPS5616446A
JPS5616446A JP9031579A JP9031579A JPS5616446A JP S5616446 A JPS5616446 A JP S5616446A JP 9031579 A JP9031579 A JP 9031579A JP 9031579 A JP9031579 A JP 9031579A JP S5616446 A JPS5616446 A JP S5616446A
Authority
JP
Japan
Prior art keywords
preparation
methoxy
compound
formula
terephthalic acid
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
Application number
JP9031579A
Other languages
Japanese (ja)
Other versions
JPS623831B2 (en
Inventor
Hiroyuki Yamane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP9031579A priority Critical patent/JPS5616446A/en
Publication of JPS5616446A publication Critical patent/JPS5616446A/en
Publication of JPS623831B2 publication Critical patent/JPS623831B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

NEW MATERIAL:A 2-methoxy-5-haloterephthalic acid-1-alkyl ester of formula I (R is lower alkyl; X is halogen).
EXAMPLE: 2-Methoxy-5-chloroterephthalic acid-1-methyl ester.
USE: An intermediate for the preparation of pharmaceuticals. Usable for the preparation of 2-methoxy-4-amino-5-chloro-N-(tertiary aminoethyl) benzamide etc. of the pharmaceuticals having pharmacological actions, e.g. analgesic, sedative, neuroleptic and mental hypotonic actions.
PROCESS: The compound of formula I is obtained by the reaction of a compound of formula II in a solvent, e.g. methanol, in the presence of an acid catalyst (e.g. H2 SO4 or HCl) or by the reaction of the compound with diazomethane or an alkyl halide in a solvent, e.g. acetone or benzene.
COPYRIGHT: (C)1981,JPO&Japio
JP9031579A 1979-07-18 1979-07-18 Novel derivative of terephthalic acid and its preparation Granted JPS5616446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9031579A JPS5616446A (en) 1979-07-18 1979-07-18 Novel derivative of terephthalic acid and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9031579A JPS5616446A (en) 1979-07-18 1979-07-18 Novel derivative of terephthalic acid and its preparation

Publications (2)

Publication Number Publication Date
JPS5616446A true JPS5616446A (en) 1981-02-17
JPS623831B2 JPS623831B2 (en) 1987-01-27

Family

ID=13995088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9031579A Granted JPS5616446A (en) 1979-07-18 1979-07-18 Novel derivative of terephthalic acid and its preparation

Country Status (1)

Country Link
JP (1) JPS5616446A (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEM PHARM BULL *

Also Published As

Publication number Publication date
JPS623831B2 (en) 1987-01-27

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