JPS57171949A - Preparation of p-isocyanatobenzoyl chloride - Google Patents

Preparation of p-isocyanatobenzoyl chloride

Info

Publication number
JPS57171949A
JPS57171949A JP5796981A JP5796981A JPS57171949A JP S57171949 A JPS57171949 A JP S57171949A JP 5796981 A JP5796981 A JP 5796981A JP 5796981 A JP5796981 A JP 5796981A JP S57171949 A JPS57171949 A JP S57171949A
Authority
JP
Japan
Prior art keywords
compound
reacting
thionyl chloride
phosphorus pentachloride
raw material
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.)
Pending
Application number
JP5796981A
Other languages
Japanese (ja)
Inventor
Kazufumi Yagyu
Arahiko Eguchi
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.)
Ajinomoto Co Inc
Original Assignee
Ajinomoto Co 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 Ajinomoto Co Inc filed Critical Ajinomoto Co Inc
Priority to JP5796981A priority Critical patent/JPS57171949A/en
Publication of JPS57171949A publication Critical patent/JPS57171949A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prepare the titled compound useful as a synthetic raw material of pharmaceuticals, polymers, etc., in high efficiency, by reacting p-{N-(alkoxycarbonyl)-amino}benzoic acid with phosphorus pentachloride or thionyl chloride.
CONSTITUTION: The compound of formula II can be prepared by reacting 1mol of the compound of formulaI(R is alkyl or aralkyl) with ≥2mol of phosphorus pentachloride or thionyl chloride at 80W110°C in the absence of solvent, or preferably in an inert organic solvent such as benzene. The amount of phosphorus pentachloride or thionyl chloride is preferably 2.1W2.5mol or 15W20mol per 1mol of the compound of formulaIto improve the yield. The compound of formulaIused as a starting raw material can be prepared easily by reacting p-aminobenzoic acid with chloroformic acid ester in an alkaline aqueous solution.
COPYRIGHT: (C)1982,JPO&Japio
JP5796981A 1981-04-17 1981-04-17 Preparation of p-isocyanatobenzoyl chloride Pending JPS57171949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5796981A JPS57171949A (en) 1981-04-17 1981-04-17 Preparation of p-isocyanatobenzoyl chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5796981A JPS57171949A (en) 1981-04-17 1981-04-17 Preparation of p-isocyanatobenzoyl chloride

Publications (1)

Publication Number Publication Date
JPS57171949A true JPS57171949A (en) 1982-10-22

Family

ID=13070835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5796981A Pending JPS57171949A (en) 1981-04-17 1981-04-17 Preparation of p-isocyanatobenzoyl chloride

Country Status (1)

Country Link
JP (1) JPS57171949A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116592A (en) * 1985-10-17 1987-05-28 イミユノメデイツクス、インコ−ポレイテツド Difunctional linker
US4873232A (en) * 1986-10-29 1989-10-10 Syntex Novel use for carbamoyl benzoates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116592A (en) * 1985-10-17 1987-05-28 イミユノメデイツクス、インコ−ポレイテツド Difunctional linker
US4873232A (en) * 1986-10-29 1989-10-10 Syntex Novel use for carbamoyl benzoates

Similar Documents

Publication Publication Date Title
JPS57171949A (en) Preparation of p-isocyanatobenzoyl chloride
JPS5312835A (en) Preparation of 2-(3-phenoxyphenyl) propionic acid
JPS5750953A (en) Preparation of hydroxybenzonitriles
JPS5767545A (en) Preparation of of alpha,beta-unsaturated alpha-amino acid ester
JPS56138151A (en) Preparation of beta-chloroalanine
JPS57144252A (en) Preparation of aminoalkylthiol
JPS55154950A (en) Novel carboxylic acid amide derivative
JPS53108933A (en) Production of amidinoformic acid derivative
JPS557222A (en) Preparation of aletheine derivative
JPS57106678A (en) Preparation of dibenzothiepinpropionic acid derivative
JPS56131576A (en) Novel phenylacetamide derivative
JPS5639053A (en) Preparation of salt of mineral acid of alpha-halogeno- beta-alanine
JPS5239648A (en) Aprocess for preparing p-cyanobenzoic acid amide from terephthalonitril e
JPS5585568A (en) Quinolinone-imine derivative and its preparation
JPS55102559A (en) Production of 2-methoxy-5-sulfamoylbenzoic acid amide
JPS5618963A (en) Preparation of alpha-halogeno-beta-phthalimide propionitrile
JPS5289603A (en) Preparation of perfluorovinyl compounds
JPS5758641A (en) Preparation of optically active alpha-substituted carboxylic acid
JPS5356643A (en) Trans-4-aminomethylcyclohexane-carboxylic acid ester
JPS55122788A (en) Preparation of cephalosporin compound
JPS54119428A (en) Novel benzoic acid derivative
JPS5726675A (en) Novel guanidinothiazole derivative and its preparation
JPS54103890A (en) Novel antibacteral compound
JPS5782392A (en) Preparation of 7-aminocephem compound
JPS5377042A (en) Preparation of optically active organic thiophosphotic acid