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

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  • 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

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