KR860008121A - Benzidine and its preparation method - Google Patents

Benzidine and its preparation method Download PDF

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Publication number
KR860008121A
KR860008121A KR1019850002895A KR850002895A KR860008121A KR 860008121 A KR860008121 A KR 860008121A KR 1019850002895 A KR1019850002895 A KR 1019850002895A KR 850002895 A KR850002895 A KR 850002895A KR 860008121 A KR860008121 A KR 860008121A
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KR
South Korea
Prior art keywords
benzidine
compound
compounds
reaction
benzenenitro
Prior art date
Application number
KR1019850002895A
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Korean (ko)
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KR890001850B1 (en
Inventor
오동근
김만기
고동주
Original Assignee
오동근
김만기
고동주
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Publication date
Application filed by 오동근, 김만기, 고동주 filed Critical 오동근
Priority to KR1019850002895A priority Critical patent/KR890001850B1/en
Publication of KR860008121A publication Critical patent/KR860008121A/en
Application granted granted Critical
Publication of KR890001850B1 publication Critical patent/KR890001850B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/82—Purification; Separation; Stabilisation; Use of additives
    • C07C209/90—Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
    • C07C211/49—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring having at least two amino groups bound to the carbon skeleton
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

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

Abstract

내용 없음No content

Description

벤지딘 및 그 화합물의 제조방법Benzidine and its preparation method

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

Claims (6)

니트로벤젠과 벤젠니트로화합물로부터 벤지딘 및 벤지딘 화합물을 합성제조함에 있어서 질소기류분위기에서 2.3-디클로로-1.4 니프로퀴논, 가성소다 계면활성제를 혼합하여 가온하에 반응시킨후 여기에 유기용제 및 니트로벤젠 또는 벤젠니트로 화합물중의 일종을 첨가 귀금속촉매하에 재차 반응시킨 다음, 질소기류를 완전히 배기하고 기온상태에서 반응이 종료될때까지 수소를 도입하여 수첨반응(Hydroganation)을 시키므로서 히드라조벤젠 및 히드라조벤젠 화합물을 생성시키고 이를 공지의 방법으로 전위 및 염석하여 벤지딘 및 벤지딘화합물을 제조하는 방법.In the preparation of benzidine and benzidine compounds from nitrobenzene and benzenenitro compounds, 2.3-dichloro-1.4 niproquinone and caustic soda surfactant are mixed under a nitrogen atmosphere and reacted under warming, followed by organic solvents and nitrobenzene or benzene. After reacting a kind of nitro compound again under the addition noble metal catalyst, the hydrazobenzene and hydrazobenzene compounds were removed by completely evacuating the nitrogen stream and introducing hydrogen until the reaction was completed at the temperature condition. Producing and benzidine and benzidine compounds by dislocation and salting in a known manner. 청구범위 1항에 있어서 귀금속촉매를 닉켈 및 그화합물을, 파라디움 및 그화합물, 백금 및 그 화합물을 사용함을 특징으로 하는 제1항의 방법.The method of claim 1, wherein the noble metal catalyst is Nickel and its compound, and Paradium and its compound, platinum and its compound. 청구범위 1항에 있어서 유기용제를 용제나프타, 벤젠, 토루엔, 크시렌을 사용함을 특징으로 하는 제1항의 방법.The method according to claim 1, wherein the organic solvent is a solvent naphtha, benzene, toluene or xylene. 청구번위 1항에 있어서 반응온도가 30℃-90℃이고 수소압력의 1-20㎏/㎠조건에서 반응시킴을 특징으로 하는 제1항의 방법.The method of claim 1 wherein the reaction temperature is 30 ° C.-90 ° C. and the reaction is carried out at 1-20 kg / cm 2 condition of hydrogen pressure. 청구범위 1항에 있어서 벤젠니트로화합물이 젠지딘, 0-니트로토루엔, 0-니트로아니솔, 0-니트로클로로벤젠임을 특징으로 하는 제1항의 방법.The process of claim 1 wherein the benzenenitro compound is zenzidine, 0-nitrotoluene, 0-nitroanisole, 0-nitrochlorobenzene. 청구범위 1항에 있어서 벤지딘 및 벤지딘화합물이 아래식으로 나타나는 제1항의 방법.The method of claim 1, wherein the benzidine and benzidine compound are represented by the following formula. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850002895A 1985-04-30 1985-04-30 Process for the preparation of benzidine compound KR890001850B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019850002895A KR890001850B1 (en) 1985-04-30 1985-04-30 Process for the preparation of benzidine compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019850002895A KR890001850B1 (en) 1985-04-30 1985-04-30 Process for the preparation of benzidine compound

Publications (2)

Publication Number Publication Date
KR860008121A true KR860008121A (en) 1986-11-12
KR890001850B1 KR890001850B1 (en) 1989-05-27

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ID=19240695

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Application Number Title Priority Date Filing Date
KR1019850002895A KR890001850B1 (en) 1985-04-30 1985-04-30 Process for the preparation of benzidine compound

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020095771A (en) * 2001-06-15 2002-12-28 한국협화화학공업 주식회사 Process for the preparation of benzidine compound
KR100711310B1 (en) * 2002-10-15 2007-04-27 주식회사 협화화학 Process for the preparation of benzidine compound

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100643133B1 (en) * 2004-11-22 2006-11-10 주식회사 두산 Improved method for preparing benzidine compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020095771A (en) * 2001-06-15 2002-12-28 한국협화화학공업 주식회사 Process for the preparation of benzidine compound
KR100711310B1 (en) * 2002-10-15 2007-04-27 주식회사 협화화학 Process for the preparation of benzidine compound

Also Published As

Publication number Publication date
KR890001850B1 (en) 1989-05-27

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