JPS5651436A - Preparation of p-chlorocarbonylbenzoic acid methyl ester - Google Patents

Preparation of p-chlorocarbonylbenzoic acid methyl ester

Info

Publication number
JPS5651436A
JPS5651436A JP12813179A JP12813179A JPS5651436A JP S5651436 A JPS5651436 A JP S5651436A JP 12813179 A JP12813179 A JP 12813179A JP 12813179 A JP12813179 A JP 12813179A JP S5651436 A JPS5651436 A JP S5651436A
Authority
JP
Japan
Prior art keywords
terephthalate
preparation
methyl ester
acid methyl
dimethyl terephthalate
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
JP12813179A
Other languages
Japanese (ja)
Other versions
JPS621382B2 (en
Inventor
Kenji Nakaoka
Sakie Hasegawa
Tomoaki Ueda
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP12813179A priority Critical patent/JPS5651436A/en
Publication of JPS5651436A publication Critical patent/JPS5651436A/en
Publication of JPS621382B2 publication Critical patent/JPS621382B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prepare the titled compound useful as a raw material of pharmaceuticals, polymer modifiers, etc., by partially saponifying dimethyl terephthalate, and without converting to carboxylic acid, reacting with a chlorinating agent.
CONSTITUTION: A methanol solution of dimethyl terephthalate is added with a methanol solution containing 1.0W1.5mol, based on 1mol of dimethyl terephthalate, of potassium hydroxide, and made to react with heating. The formed potassium salt of monomethyl terephthalate crystal is filtered, and reacted with a chlorinating agent selected from thionyl chloride, phosphorus pentachloride, phosphorus trichloride, and phosphorus oxychloride, to obtain p-chlorocarbonylbenzoic acid methyl ester. The process for the preparation of monomethyl terephthalate by saponifying a monometal salt of monomethyl terephthalate followed by acid treatment, which is essential in the conventional procedure, can be eliminated by this process.
COPYRIGHT: (C)1981,JPO&Japio
JP12813179A 1979-10-04 1979-10-04 Preparation of p-chlorocarbonylbenzoic acid methyl ester Granted JPS5651436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12813179A JPS5651436A (en) 1979-10-04 1979-10-04 Preparation of p-chlorocarbonylbenzoic acid methyl ester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12813179A JPS5651436A (en) 1979-10-04 1979-10-04 Preparation of p-chlorocarbonylbenzoic acid methyl ester

Publications (2)

Publication Number Publication Date
JPS5651436A true JPS5651436A (en) 1981-05-09
JPS621382B2 JPS621382B2 (en) 1987-01-13

Family

ID=14977157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12813179A Granted JPS5651436A (en) 1979-10-04 1979-10-04 Preparation of p-chlorocarbonylbenzoic acid methyl ester

Country Status (1)

Country Link
JP (1) JPS5651436A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02160385A (en) * 1988-12-13 1990-06-20 Riyousei Denso Kk Connector housing

Also Published As

Publication number Publication date
JPS621382B2 (en) 1987-01-13

Similar Documents

Publication Publication Date Title
JPS5610130A (en) Anthracene derivative and luminous composition
JPS5651436A (en) Preparation of p-chlorocarbonylbenzoic acid methyl ester
JPS5414950A (en) Preparation of alpha-tetralone
JPS55162763A (en) Perfluoroalkyl compound and its preparation
JPS5555135A (en) Preparation of d-2-(6-methoxy-2-naphthyl)-propionic acid
JPS56138151A (en) Preparation of beta-chloroalanine
JPS53137911A (en) Preparation of n-(alpha-hydroxyalkanoyl)-peptides
JPS5459224A (en) Preparation of ethylenediaminetetraacetates
JPS5459283A (en) Preparation of 2,3,5-trichloropyridine
JPS55127343A (en) Preparation of oxy-di-phthalic acid or acid anhydride
JPS5632461A (en) Preparation of 2,2,6,6-tetrakis (nicotinoyloxymethyl) cyclohexanol
JPS5430128A (en) Preparation of water impregnated substance of diperisophthalic acid tent-butyl ester
JPS5422336A (en) Continuous preparation of phthalic acid diallyl ester
JPS55151600A (en) Preparation of steroid carboxylate
JPS5618971A (en) Alpha-halogeno-beta-benzosulfimidopropionitrile and its preparation
JPS5639053A (en) Preparation of salt of mineral acid of alpha-halogeno- beta-alanine
JPS5441868A (en) Production of n-alkylpyrrolyl-2-acetic acid
JPS52108949A (en) Preparation of 2-(4#-alkylphenyl)propionic acids
JPS5649398A (en) Preparation of 1-beta-d-arabinofuranosyl-2,2'-cyclothymine
JPS537655A (en) Preparation of 2-(6-methoxy-2-naphthyl)propionic acid
JPS5731632A (en) Preparation of chloroacetaldehyde
JPS5353615A (en) Preparation of beta-hydroxy-alpha-amino acids
JPS5328694A (en) Preparation of polyester
JPS53135968A (en) Preparation of 1-ethyl-2-(2-methoxy-5-sulfamoylbenzamidomethyl) pyrrolidine
JPS56125334A (en) Preparation of 2- 3-phenoxyphenyl propionic acid