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WO2006016772A1 - Novel benzimidazole compound - Google Patents

Novel benzimidazole compound Download PDF

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Publication number
WO2006016772A1
WO2006016772A1 PCT/KR2005/002599 KR2005002599W WO2006016772A1 WO 2006016772 A1 WO2006016772 A1 WO 2006016772A1 KR 2005002599 W KR2005002599 W KR 2005002599W WO 2006016772 A1 WO2006016772 A1 WO 2006016772A1
Authority
WO
WIPO (PCT)
Prior art keywords
benzimidazole compound
benzimidazole
set forth
thin film
compound
Prior art date
Application number
PCT/KR2005/002599
Other languages
French (fr)
Inventor
Chong-Kyu Shin
Young-Ji Tae
Bong-Keun Lee
Original Assignee
Lg Chem, Ltd.
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 Lg Chem, Ltd. filed Critical Lg Chem, Ltd.
Priority to EP05774125A priority Critical patent/EP1778674A4/en
Priority to JP2006532109A priority patent/JP4459230B2/en
Publication of WO2006016772A1 publication Critical patent/WO2006016772A1/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D403/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/04Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/18Polybenzimidazoles
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D235/00Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/18Benzimidazoles; Hydrogenated benzimidazoles with aryl radicals directly attached in position 2
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D403/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/10Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing aromatic rings

Definitions

  • the present invention relates to a novel benzimidazole compound, more precisely, a benzimidalzole compound available for the production of a polymer for functional polymer thin film by polymerization with bishydroxy compound.
  • Polybenzimidazole(PBI) has been widely used owing to its excellent mechanical and physical characteristics, and in particular, used for the production of fire wall or fire coat owing to its strong heat resistance.
  • PBI Polybenzimidazole
  • the structure of polybenzimidazole in which two benzimidazole compounds are directly bound each other and phenyl group not substituted with halogen is bound at No. 2 site is described in Russian (Soviet Union) patent No. 879985 and J. Org. Chem. 1977, 42(22); p3485 ⁇ 91.
  • the structures having substitution of halogen, hydroxy, cyano, alkoxy, or alkyl are described in US Patent No.
  • X is a halogen such as F, Cl, Br or I
  • Y is a functional group having strong electron- drawing force such as nitro (-NO ) or trifluoromethyl (-CF ).
  • X is preferred to be F or Cl and Y is preferred to be triflu ⁇ oromethyl or nitro.
  • the present invention also provides a benzimidazole polymer synthesized by using the benzimidazole compound of formula 1 as a monomer.
  • the present invention further provides a functional polymer thin film containing the synthesized benzimidazole polymer.
  • the functional polymer thin film is preferred to be doped with phosphoric acid or sulfuric acid, and can be used as an electrolyte of fuel cell. Best Mode for Carrying Out the Invention
  • novel benzimidazole compound of the present invention is very useful for the production of polymers used as a functional polymer thin film by polymerization with bishydroxy compound.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Conductive Materials (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

The present invention relates to a novel benzimidazole compound represented by formula 1. The novel benzimidazole compound of the present invention is very useful for the production of polymers used as a functional polymer thin film by polymerization with bishydroxy compound.

Description

Description
NOVEL BENZIMIDAZOLE COMPOUND
Technical Field
[1] The present invention relates to a novel benzimidazole compound, more precisely, a benzimidalzole compound available for the production of a polymer for functional polymer thin film by polymerization with bishydroxy compound.
Background Art
[2] Polybenzimidazole(PBI) has been widely used owing to its excellent mechanical and physical characteristics, and in particular, used for the production of fire wall or fire coat owing to its strong heat resistance. [3] In regard to polybenzimidazole, the structure of polybenzimidazole in which two benzimidazole compounds are directly bound each other and phenyl group not substituted with halogen is bound at No. 2 site is described in Russian (Soviet Union) patent No. 879985 and J. Org. Chem. 1977, 42(22); p3485~91. [4] The structures having substitution of halogen, hydroxy, cyano, alkoxy, or alkyl are described in US Patent No. 5,824,698, and the structure having substitution of phenyl with hydroxy is described in US Patent No. 5,317,078 and No. 5,412,059. [5] According to the description of US Patent No. 5,525,436, polybenzimizole thin film doped with phosphoric acid shows excellent proton conductivity at high temperature over 100°C, which directs the recent studies to the use of polybenzimidazole as an electrolyte for fuel cell at high temperature. [6] However, the production of polymer thin film is not easy because the isolation of polymerized polybenzimidazole from a reaction solution is very difficult owing to its low solubility in a solvent (H. -J. Kim et ah, Macromol. Rapid Commun., 25, 894
(2004)).
Disclosure of Invention
Technical Solution [7] It is an object of the present invention to provide a novel benzimidazole compound having a completely different structure from that of the conventional benzimidazole compounds. [8] In order to achieve the above object of the present invention, the invention provides a benzimidazole compound represented by the following formula 1. [9] ChemistryFigure 1
Figure imgf000003_0001
[10] Wherein,
[11] X is a halogen such as F, Cl, Br or I, Y is a functional group having strong electron- drawing force such as nitro (-NO ) or trifluoromethyl (-CF ).
[12] In the formula 1, X is preferred to be F or Cl and Y is preferred to be triflu¬ oromethyl or nitro.
[13] The present invention also provides a benzimidazole polymer synthesized by using the benzimidazole compound of formula 1 as a monomer.
[14] The present invention further provides a functional polymer thin film containing the synthesized benzimidazole polymer.
[15] The functional polymer thin film is preferred to be doped with phosphoric acid or sulfuric acid, and can be used as an electrolyte of fuel cell. Best Mode for Carrying Out the Invention
[16] Practical and presently preferred embodiments of the present invention are il¬ lustrative as shown in the following Examples.
[17] However, it will be appreciated that those skilled in the art, on consideration of this disclosure, may make modifications and improvements within the spirit and scope of the present invention.
[18] [Example]
[19] 3.756g (10.430 mmol) of 3,3'-diaminobenzidine tetrahydrochloride dehydrate and
4.43Og (20.854 mmol) of 4-fluoro-3-(trifluoromethyl) benzoic acid were dissolved in 50D of PPMA(phosphorous pentoxide/methansulfonic acid), followed by reaction at 130°C for 5 hours. The reaction solution was poured in 1 M of sodium hydroxide. The precipitate was filtered and the filtrate was washed with hot distilled water several times. The filtrate was dried at 100°C in a vacuum oven for over 12 hours, followed by recrystalization with ethanol, resulting in 5.05 g of pure benzimidazole (2,2'-bis(4-fluoro-3-(trifluoromethyl)) -5,5'-bibenzimidazole). The reaction formula is shown below. The chemical structure of the obtained benzimidazole was confirmed by 1H-NMR.
[20] 1H-NMR(DMSO-d6): 8.18-8.07(m, 2H), 7.45(d, IH), 7.35-7.23(m, 2H),
7.19-7.12(m, IH) [21] ChemistryFigure 2
Figure imgf000004_0001
Industrial Applicability
[22] As explained hereinbefore, the novel benzimidazole compound of the present invention is very useful for the production of polymers used as a functional polymer thin film by polymerization with bishydroxy compound.
[23] Those skilled in the art will appreciate that the conceptions and specific em¬ bodiments disclosed in the foregoing description may be readily utilized as a basis for modifying or designing other embodiments for carrying out the same purposes of the present invention. Those skilled in the art will also appreciate that such equivalent em¬ bodiments do not depart from the spirit and scope of the invention as set forth in the appended claims.

Claims

Claims
[1] A benzimidazole compound represented by the following formula 1. [Chemistry Figure 1]
Figure imgf000005_0001
Wherein, X is F, Cl, Br or I,
Y is nitro (-NO ) or trifluoromethyl (-CF ).
[2] The benzimidazole compound as set forth in claim 1, wherein the X is F.
[3] The benzimidazole compound as set forth in claim 1, wherein the X is Cl.
[4] The benzimidazole compound as set forth in claim 1, wherein the Y is triflu¬ oromethyl.
[5] The benzimidazole compound as set forth in claim 1, wherein the Y is nitro.
[6] A benzimidazole polymer synthesized by using the benzimidazole compound of claim 1 as a monomer.
[7] A functional polymer thin film containing the benzimidazole polymer of claim 6.
[8] The functional polymer thin film as set forth in claim 7, wherein the film is doped with phosphoric acid or sulfuric acid.
[9] The functional polymer thin film as set forth in claim 7, wherein the film is used as an electrolyte of fuel cell.
PCT/KR2005/002599 2004-08-11 2005-08-11 Novel benzimidazole compound WO2006016772A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05774125A EP1778674A4 (en) 2004-08-11 2005-08-11 Novel benzimidazole compound
JP2006532109A JP4459230B2 (en) 2004-08-11 2005-08-11 Benzimidazole compounds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040063229A KR100629060B1 (en) 2004-08-11 2004-08-11 Novel Benzimidazole Compound
KR10-2004-0063229 2004-08-11

Publications (1)

Publication Number Publication Date
WO2006016772A1 true WO2006016772A1 (en) 2006-02-16

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Country Status (6)

Country Link
US (1) US7446165B2 (en)
EP (1) EP1778674A4 (en)
JP (1) JP4459230B2 (en)
KR (1) KR100629060B1 (en)
CN (1) CN1820002A (en)
WO (1) WO2006016772A1 (en)

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US8761744B2 (en) * 2007-04-20 2014-06-24 Lupine Investments Llc Mobile virtual communication invitations
GB0821913D0 (en) * 2008-12-02 2009-01-07 Price & Co Antibacterial compounds
NZ620020A (en) * 2009-08-17 2015-06-26 Intellikine Llc Heterocyclic compounds and uses thereof
CA2804304C (en) 2010-05-24 2020-02-25 Intellikine, Llc Heterocyclic compounds and uses thereof
WO2011151621A1 (en) 2010-06-01 2011-12-08 Summit Corporation Plc Compounds for the treatment of clostridium difficile associated disease
WO2011151619A1 (en) * 2010-06-01 2011-12-08 Summit Corporation Plc Compounds for the treatment of clostridium difficile associated disease
WO2012116237A2 (en) 2011-02-23 2012-08-30 Intellikine, Llc Heterocyclic compounds and uses thereof
CN104177346A (en) * 2013-05-21 2014-12-03 苏州科捷生物医药有限公司 Quinazoline compound and use thereof
CN104774332B (en) * 2015-03-30 2017-03-15 四川大学 High index of refraction sulfur-bearing polybenzimidazoles and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317078A (en) 1991-10-30 1994-05-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Polybenzimidazole via aromatic nucleophilic displacement
US5412059A (en) 1993-04-05 1995-05-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Polybenzimidazoles via aromatic nucleophilic displacement
US5525436A (en) 1994-11-01 1996-06-11 Case Western Reserve University Proton conducting polymers used as membranes
US5824698A (en) 1994-11-17 1998-10-20 Hoffman-La Roche Inc. Antibacterial dibenzimidazole derivatives

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU879985A1 (en) 1979-09-21 1986-03-15 Институт Естественных Наук Бурятского Филиала Со Ан Ссср Method of producing heat-hardened polymers
FR2833164B1 (en) * 2001-12-07 2004-07-16 Oreal ANTISOLAR COSMETIC COMPOSITIONS BASED ON A SYNERGISTIC MIXTURE OF FILTERS AND USES

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317078A (en) 1991-10-30 1994-05-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Polybenzimidazole via aromatic nucleophilic displacement
US5412059A (en) 1993-04-05 1995-05-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Polybenzimidazoles via aromatic nucleophilic displacement
US5525436A (en) 1994-11-01 1996-06-11 Case Western Reserve University Proton conducting polymers used as membranes
US5824698A (en) 1994-11-17 1998-10-20 Hoffman-La Roche Inc. Antibacterial dibenzimidazole derivatives

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
COVILLE NJ ET AL: "Oxidative cyclodehydrogenation of aromatic bis(o-aminoanils)", J ORG CHEM, vol. 42, no. 22, 1977, pages 3485 - 3491, XP001068509 *
See also references of EP1778674A4 *

Also Published As

Publication number Publication date
CN1820002A (en) 2006-08-16
KR100629060B1 (en) 2006-09-26
US20060036061A1 (en) 2006-02-16
EP1778674A1 (en) 2007-05-02
US7446165B2 (en) 2008-11-04
JP4459230B2 (en) 2010-04-28
JP2007509041A (en) 2007-04-12
KR20060014616A (en) 2006-02-16
EP1778674A4 (en) 2009-07-22

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