KR950008453A - Method for preparing organic isocyanate using triphenylphosphonium bromide - Google Patents

Method for preparing organic isocyanate using triphenylphosphonium bromide Download PDF

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Publication number
KR950008453A
KR950008453A KR1019930018855A KR930018855A KR950008453A KR 950008453 A KR950008453 A KR 950008453A KR 1019930018855 A KR1019930018855 A KR 1019930018855A KR 930018855 A KR930018855 A KR 930018855A KR 950008453 A KR950008453 A KR 950008453A
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KR
South Korea
Prior art keywords
organic isocyanate
triphenylphosphonium bromide
diazabicyclo
preparing organic
ene
Prior art date
Application number
KR1019930018855A
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Korean (ko)
Other versions
KR970004411B1 (en
Inventor
김삼민
박선이
김성주
Original Assignee
김흥기
금호석유화학 주식회사
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Application filed by 김흥기, 금호석유화학 주식회사 filed Critical 김흥기
Priority to KR1019930018855A priority Critical patent/KR970004411B1/en
Publication of KR950008453A publication Critical patent/KR950008453A/en
Application granted granted Critical
Publication of KR970004411B1 publication Critical patent/KR970004411B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/12—Preparation of derivatives of isocyanic acid from or via nitrogen analogues of carboxylic acids, e.g. from hydroxamic acids, involving a Hofmann, Curtius or Lossen-type rearrangement

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

3차 아민의 존재하에, -40℃~100℃의 비교적 낮은 반응 온도 범위에서 브로모 트리클로로 메탄과 트리페닐 포스핀의 반응으로 생성된 트리페닐포스포니움 브로마이드와 지방족 또는 방향족 하이드록사믹산을 비양성자성 용매에서 반응시켜 높은 수득율의 유기 이소시아네이트를 제조하는 방법이다.In the presence of tertiary amines, aliphatic or aromatic hydroxamic acid and triphenylphosphonium bromide produced by the reaction of bromo trichloromethane with triphenyl phosphine in a relatively low reaction temperature range of -40 ° C to 100 ° C A method of producing organic isocyanates of high yield by reacting in a protic solvent.

Description

트리페닐포스포니움 브로마이드를 이용한 유기 이소시아네이트 제조방법Method for preparing organic isocyanate using triphenylphosphonium bromide

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

유기 이소시아네이트 제조방법에 있어서, 3차 아민의 존재하에서, -40℃~100℃의 반응 온도 범위에서, 트리페닐포스핀과 브로모트리클로로 메탄의 반응후 지방족 또는 방향족 하이드록사믹산을 반응시킨 유기 이소시아네이트의 제조방법.In the organic isocyanate production method, organic isocyanate obtained by reacting aliphatic or aromatic hydroxamic acid after the reaction of triphenylphosphine and bromotrichloromethane in the reaction temperature range of -40 ° C to 100 ° C in the presence of tertiary amine. Manufacturing method. 제1항에 있어서, 3차 아민으로 트리에틸아민, 피리딘, 퀴놀린 및 퀴녹살린, 헥산 메틸렌 테트라민, 1,4-디아자바이시클로(2.2.2)옥탄, 1,5-디아자비이시클로(4.3.0)논-5-엔, 1,8-디아자바이시클로(5.4.0)운덱-7-엔 등인 유기 이소시아네이트의 제조 방법.The method of claim 1, wherein the tertiary amine is triethylamine, pyridine, quinoline and quinoxaline, hexane methylene tetramine, 1,4-diazabicyclo (2.2.2) octane, 1,5-diazabicyclo (4.3). .0) A method for producing organic isocyanates which are non-5-ene, 1,8-diazabicyclo (5.4.0) undec-7-ene and the like. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930018855A 1993-09-17 1993-09-17 Process for the preparation of organic isocyanate using triphenylphosphonium bromide KR970004411B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930018855A KR970004411B1 (en) 1993-09-17 1993-09-17 Process for the preparation of organic isocyanate using triphenylphosphonium bromide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930018855A KR970004411B1 (en) 1993-09-17 1993-09-17 Process for the preparation of organic isocyanate using triphenylphosphonium bromide

Publications (2)

Publication Number Publication Date
KR950008453A true KR950008453A (en) 1995-04-17
KR970004411B1 KR970004411B1 (en) 1997-03-27

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Application Number Title Priority Date Filing Date
KR1019930018855A KR970004411B1 (en) 1993-09-17 1993-09-17 Process for the preparation of organic isocyanate using triphenylphosphonium bromide

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KR (1) KR970004411B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101602787B1 (en) 2015-09-07 2016-03-11 용 황보 Pallet using synthetic wood

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101602787B1 (en) 2015-09-07 2016-03-11 용 황보 Pallet using synthetic wood

Also Published As

Publication number Publication date
KR970004411B1 (en) 1997-03-27

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