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2215-89-6

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2215-89-6 Usage

Chemical Properties

White to pale brown solid

Uses

4,4'-oxybisbenzoic acid is a monomeric liquid crystal polymer. it is used widely in the electronics and pharmaceutical industries. Preparation of whole Polyarylate thermoplastic liquid crystal polymer (TLCP), also can be used to prepare high strength, high modulus of liquid crystal fibers, specialty plastics and polymer flame retardants in industrial. also as a non-liquid crystal polymer additives, reduce baking temperature and viscosity of the polymer to facilitate processing and made of an insulating material.

Check Digit Verification of cas no

The CAS Registry Mumber 2215-89-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,1 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2215-89:
(6*2)+(5*2)+(4*1)+(3*5)+(2*8)+(1*9)=66
66 % 10 = 6
So 2215-89-6 is a valid CAS Registry Number.

2215-89-6 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
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  • Detail
  • Alfa Aesar

  • (L15651)  4,4'-Oxybis(benzoic acid), 98+%   

  • 2215-89-6

  • 25g

  • 221.0CNY

  • Detail
  • Alfa Aesar

  • (L15651)  4,4'-Oxybis(benzoic acid), 98+%   

  • 2215-89-6

  • 100g

  • 608.0CNY

  • Detail
  • Aldrich

  • (364762)  4,4′-Oxybis(benzoicacid)  99%

  • 2215-89-6

  • 364762-100G

  • 1,246.05CNY

  • Detail

2215-89-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-(4-carboxyphenoxy)benzoic acid

1.2 Other means of identification

Product number -
Other names Diphenyl Ether 4,4'-Dicarboxylic Acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2215-89-6 SDS

2215-89-6Synthetic route

dimethyl 4,4'-oxydibenzoate
14387-30-5

dimethyl 4,4'-oxydibenzoate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With water; potassium hydroxide In ethanol Concentration; Solvent;96%
para-chlorobenzoic acid
74-11-3

para-chlorobenzoic acid

4-hydroxy-benzoic acid
99-96-7

4-hydroxy-benzoic acid

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With potassium carbonate In sulfolane at 143 - 145℃; for 16h; Reagent/catalyst; Solvent; Temperature;95.9%
With potassium carbonate In dimethyl sulfoxide for 0.0833333h; microwave irradiation;
4-(4'-cyanophenoxy)benzonitrile
6508-04-9

4-(4'-cyanophenoxy)benzonitrile

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With water; potassium hydroxide In ethanol at 110 - 120℃; for 6h; Autoclave;95%
With sulfuric acid
With potassium hydroxide for 12h; Heating;
1,1'-oxybis(4-methyl-benzene)
1579-40-4

1,1'-oxybis(4-methyl-benzene)

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With dihydrogen peroxide; sodium carbonate at 100℃; under 7500.75 Torr; for 18h; Reagent/catalyst; Pressure;93%
With pyridine; cobalt(III) acetylacetonate; dihydrogen peroxide; sodium carbonate In acetic acid at 100℃; under 15001.5 Torr; for 6h; Reagent/catalyst; Temperature; Solvent; Pressure;92%
With 2-chloroanthracene-9,10-dione; water; oxygen; trifluoroacetic acid In ethyl acetate for 72h; Irradiation;70%
carbon monoxide
201230-82-2

carbon monoxide

4,4'-dibromodiphenyl ether
2050-47-7

4,4'-dibromodiphenyl ether

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With water; triethylamine; 1,4-di(diphenylphosphino)-butane; palladium dichloride In acetonitrile at 120℃; under 7500.75 Torr; for 10h;92.6%
bis-(4-chloromethyl-phenyl)-ether
2362-18-7

bis-(4-chloromethyl-phenyl)-ether

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With potassium permanganate
4,4'-bis(chloroacetyl)diphenyl ether
3030-53-3

4,4'-bis(chloroacetyl)diphenyl ether

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With potassium permanganate
4-(4-carbamoylphenoxyl)benzamide
6336-34-1

4-(4-carbamoylphenoxyl)benzamide

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

n-butyllithium
109-72-8, 29786-93-4

n-butyllithium

diethyl ether
60-29-7

diethyl ether

4,4'-dibromodiphenyl ether
2050-47-7

4,4'-dibromodiphenyl ether

benzene
71-43-2

benzene

A

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

B

4-(4-bromophenoxy)benzoic acid
21120-68-3

4-(4-bromophenoxy)benzoic acid

Conditions
ConditionsYield
anschliessendes Behandeln mit festem CO2;
4,4'-oxydiacetophenone
2615-11-4

4,4'-oxydiacetophenone

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With silver nitrate
Stage #1: 4,4'-oxydiacetophenone With sodium hydroxide; sodium hypochlorite In water at 55℃;
Stage #2: With hydrogenchloride In water
3.7 - 4.3 g
4-(4-formylphenoxy)benzaldehyde
2215-76-1

4-(4-formylphenoxy)benzaldehyde

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With sodium hypobromide
acetic acid
64-19-7

acetic acid

1,1'-oxybis(4-methyl-benzene)
1579-40-4

1,1'-oxybis(4-methyl-benzene)

chromium trioxide

chromium trioxide

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
at 40℃;
4-Fluorobenzoic acid
456-22-4

4-Fluorobenzoic acid

4-hydroxy-benzoic acid
99-96-7

4-hydroxy-benzoic acid

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide for 0.0833333h; microwave irradiation;
4-Bromobenzoic acid
586-76-5

4-Bromobenzoic acid

4-hydroxy-benzoic acid
99-96-7

4-hydroxy-benzoic acid

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide for 0.0833333h; microwave irradiation;
carbon monoxide
201230-82-2

carbon monoxide

4,4'-dibromodiphenyl ether
2050-47-7

4,4'-dibromodiphenyl ether

A

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

B

4-(4-bromophenoxy)benzoic acid
21120-68-3

4-(4-bromophenoxy)benzoic acid

Conditions
ConditionsYield
With dicobalt octacarbonyl; potassium carbonate; methyloxirane In methanol at 60℃; under 760 Torr; for 4h; Title compound not separated from byproducts;
4-Cyanochlorobenzene
623-03-0

4-Cyanochlorobenzene

/PBGLH020--460/

/PBGLH020--460/

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: K2CO3 / dimethylsulfoxide / 0.08 h / microwave irradiation
2: aq. KOH / 12 h / Heating
View Scheme
4-fluorobenzonitrile
1194-02-1

4-fluorobenzonitrile

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: K2CO3 / dimethylsulfoxide / 0.08 h / microwave irradiation
2: aq. KOH / 12 h / Heating
View Scheme
4-bromobenzenecarbonitrile
623-00-7

4-bromobenzenecarbonitrile

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: K2CO3 / dimethylsulfoxide / 0.08 h / microwave irradiation
2: aq. KOH / 12 h / Heating
View Scheme
4-cyanophenol
767-00-0

4-cyanophenol

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: K2CO3 / dimethylsulfoxide / 0.08 h / microwave irradiation
2: aq. KOH / 12 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: K2CO3 / dimethylsulfoxide / 0.08 h / microwave irradiation
2: aq. KOH / 12 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: K2CO3 / dimethylsulfoxide / 0.08 h / microwave irradiation
2: aq. KOH / 12 h / Heating
View Scheme
diphenylether
101-84-8

diphenylether

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: HCl; aqueous formaldehyde; acetic acid / Reagens 4: ZnCl2
2: KMnO4
View Scheme
para-bromotoluene
106-38-7

para-bromotoluene

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: copper powder; p-cresol / 200 - 240 °C
2: chromium trioxide; glacial acetic acid / 40 °C
View Scheme
potassium p-cresolate
1192-96-7

potassium p-cresolate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: copper powder; p-cresol / 200 - 240 °C
2: chromium trioxide; glacial acetic acid / 40 °C
View Scheme
4,4'-oxybis-((bromomethyl)benzene)
4542-75-0

4,4'-oxybis-((bromomethyl)benzene)

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Zn, AcOH, aq. CuSO4
2: aq. KMnO4
View Scheme
4-Phenoxybenzoic acid
2215-77-2

4-Phenoxybenzoic acid

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
2.0 mol %
4-methoxycarbonylphenyl bromide
619-42-1

4-methoxycarbonylphenyl bromide

methyl 4-hydroxylbenzoate
99-76-3

methyl 4-hydroxylbenzoate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: potassium hydroxide / toluene / 115 - 120 °C / Inert atmosphere
1.2: 170 - 180 °C
2.1: water; potassium hydroxide / ethanol
View Scheme
Methyl 4-chlorobenzoate
1126-46-1

Methyl 4-chlorobenzoate

methyl 4-hydroxylbenzoate
99-76-3

methyl 4-hydroxylbenzoate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: potassium hydroxide / toluene / 115 - 120 °C / Inert atmosphere
1.2: 175 - 185 °C
2.1: water; potassium hydroxide / ethanol
View Scheme
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

2-(4-aminophenoxy)-2-methyl propionic acid
117011-70-8

2-(4-aminophenoxy)-2-methyl propionic acid

C34H32N2O9
1365890-39-6

C34H32N2O9

Conditions
ConditionsYield
Stage #1: oxybis(benzoic acid) With tert-butyl chloroformate; triethylamine In tetrahydrofuran
Stage #2: 2-(4-aminophenoxy)-2-methyl propionic acid With sodium hydroxide In tetrahydrofuran; water for 2h;
Stage #3: With acetic acid In water
100%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

N-[1-(4-Amino-phenyl)-1-phenyl-meth-(E)-ylidene]-benzene-1,4-diamine

N-[1-(4-Amino-phenyl)-1-phenyl-meth-(E)-ylidene]-benzene-1,4-diamine

Polymer; Monomer(s): OPA, oxybis(benzoic acid);

Polymer; Monomer(s): OPA, oxybis(benzoic acid);

Conditions
ConditionsYield
With pyridine; 1-methyl-pyrrolidin-2-one; lithium chloride; triphenyl phosphite at 80℃;99%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

4,4'-biphenyletherdicarbonyl diimidazole

4,4'-biphenyletherdicarbonyl diimidazole

Conditions
ConditionsYield
In 1-methyl-pyrrolidin-2-one at 36 - 62℃; Solvent; Temperature; Inert atmosphere;99%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

2-(2-{4'-[2-(2-{4-[bis-(4-tert-butyl-phenyl)-(4-ethyl-phenyl)-methyl]-phenoxy}-ethoxy)-ethoxymethyl]-[2,2']bi[[1,3]dithiolylidene]-4-ylmethoxy}-ethoxy)-ethanol

2-(2-{4'-[2-(2-{4-[bis-(4-tert-butyl-phenyl)-(4-ethyl-phenyl)-methyl]-phenoxy}-ethoxy)-ethoxymethyl]-[2,2']bi[[1,3]dithiolylidene]-4-ylmethoxy}-ethoxy)-ethanol

C116H130O15S8

C116H130O15S8

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In tetrahydrofuran; dichloromethane at 20℃; for 24h;97%
terbium(III) nitrate hexahydrate

terbium(III) nitrate hexahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

sodium chloride
7647-14-5

sodium chloride

Na[Tb(4,4'-oxybis(benzoato))]*0.4DMF*1.5H2O

Na[Tb(4,4'-oxybis(benzoato))]*0.4DMF*1.5H2O

Conditions
ConditionsYield
In ethanol; N,N-dimethyl-formamide High Pressure; Tb salt, ligand and NaCl added to DMF-EtOH; heated in autoclave at 150°C for 3 d; cooled slowly to 50°C; crystals obtained; elem. anal.;96%
lead(II) nitrate

lead(II) nitrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

water
7732-18-5

water

[Pb(4,4’-oxybis(benzoate))(μ-H2O)]n

[Pb(4,4’-oxybis(benzoate))(μ-H2O)]n

Conditions
ConditionsYield
With dapsone In N,N-dimethyl-formamide at 65℃; for 96h; Autoclave;96%
zinc(II) sulfate heptahydrate

zinc(II) sulfate heptahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

trans-2'-fluoro-4-styrylpyridine
1465883-84-4

trans-2'-fluoro-4-styrylpyridine

2C14H8O5(2-)*2Zn(2+)*2C13H10FN

2C14H8O5(2-)*2Zn(2+)*2C13H10FN

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 120℃; for 2h; Sealed tube;96%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

4,4'-bis(chlorocarbonyl)diphenyl oxide
7158-32-9

4,4'-bis(chlorocarbonyl)diphenyl oxide

Conditions
ConditionsYield
With thionyl chloride In N,N-dimethyl-formamide; toluene at 95℃; for 3h;95%
With thionyl chloride In N,N-dimethyl-formamide; toluene at 95℃; for 3h;95%
With thionyl chloride; N,N-dimethyl-formamide In toluene at 95℃; for 3h;95%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

2-(2-{5-[2-(2-{4-[bis-(4-tert-butyl-phenyl)-(4-ethyl-phenyl)-methyl]-phenoxy}-ethoxy)-ethoxy]-naphthalen-1-yloxy}-ethoxy)-ethanol
346701-88-0

2-(2-{5-[2-(2-{4-[bis-(4-tert-butyl-phenyl)-(4-ethyl-phenyl)-methyl]-phenoxy}-ethoxy)-ethoxy]-naphthalen-1-yloxy}-ethoxy)-ethanol

C120H130O15

C120H130O15

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In tetrahydrofuran; dichloromethane at 20℃; for 24h;95%
zinc(II) sulfate heptahydrate

zinc(II) sulfate heptahydrate

1-(4-pyridyl)-2-(3-methoxyphenyl)ethene
31338-30-4, 147808-68-2

1-(4-pyridyl)-2-(3-methoxyphenyl)ethene

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

2C14H8O5(2-)*2Zn(2+)*2C14H13NO

2C14H8O5(2-)*2Zn(2+)*2C14H13NO

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 120℃; for 2h; Sealed tube;95%
ytterbium(III) nitrate pentahydrate

ytterbium(III) nitrate pentahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

sodium chloride
7647-14-5

sodium chloride

Na[Yb(4,4'-oxybis(benzoato))]*0.4DMF*1.5H2O

Na[Yb(4,4'-oxybis(benzoato))]*0.4DMF*1.5H2O

Conditions
ConditionsYield
With NaOH In ethanol; N,N-dimethyl-formamide High Pressure; Yb salt, ligand and NaCl added to DMF-EtOH; pH adjusted to ca. 6.0 (aq. NaOH); heated in autoclave at 150°C for 3 d; cooled slowly to 50°C; crystals obtained; elem. anal.;93%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

4-(chlorosulfonyl)-10,10-dioxo-10λ6-phenoxathiin-2,8-dicarboxylic acid

4-(chlorosulfonyl)-10,10-dioxo-10λ6-phenoxathiin-2,8-dicarboxylic acid

Conditions
ConditionsYield
With chlorosulfonic acid at 150℃; for 4h; regioselective reaction;93%
With chlorosulfonic acid Heating;
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

S-methyl-S-phenylsulfoximine
4381-25-3

S-methyl-S-phenylsulfoximine

N-4-(4,4'-oxydibenzoyl)-S-methyl-S-phenylsulfoximine

N-4-(4,4'-oxydibenzoyl)-S-methyl-S-phenylsulfoximine

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 0 - 20℃; for 13h; Schlenk technique; Inert atmosphere;93%
scandium(III) nitrate pentahydrate

scandium(III) nitrate pentahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

Sc(3+)*HO(1-)*C14H8O5(2-)

Sc(3+)*HO(1-)*C14H8O5(2-)

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 160℃; for 2h; Microwave irradiation;93%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

4-(4-carboxyphenoxy)-3-(chlorosulfonyl)benzoic acid

4-(4-carboxyphenoxy)-3-(chlorosulfonyl)benzoic acid

Conditions
ConditionsYield
With chlorosulfonic acid at 60 - 70℃; regioselective reaction;92%
With chlorosulfonic acid
With chlorosulfonic acid at 70℃; for 4h;
methanol
67-56-1

methanol

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

dimethyl 4,4'-oxydibenzoate
14387-30-5

dimethyl 4,4'-oxydibenzoate

Conditions
ConditionsYield
With trichlorophosphate Reflux;92%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

water
7732-18-5

water

samarium(III) nitrate

samarium(III) nitrate

3C14H8O5(2-)*6H2O*2Sm(3+)

3C14H8O5(2-)*6H2O*2Sm(3+)

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 100 - 120℃; for 83h; Autoclave;92%
zinc(II) sulfate heptahydrate

zinc(II) sulfate heptahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

(E)-4-(2-(pyridin-4-yl)vinyl)-2,3-dihydro-1H-inden-1-one

(E)-4-(2-(pyridin-4-yl)vinyl)-2,3-dihydro-1H-inden-1-one

2C14H8O5(2-)*2Zn(2+)*2.2C16H13NO

2C14H8O5(2-)*2Zn(2+)*2.2C16H13NO

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 120℃; for 2h; Sealed tube;92%
zinc(II) sulfate heptahydrate

zinc(II) sulfate heptahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

C13H9F2N

C13H9F2N

2C14H8O5(2-)*2Zn(2+)*2C13H9F2N

2C14H8O5(2-)*2Zn(2+)*2C13H9F2N

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 120℃; for 2h; Sealed tube;91%
zinc(II) sulfate heptahydrate

zinc(II) sulfate heptahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

C15H15N

C15H15N

2C14H8O5(2-)*2Zn(2+)*2C15H15N

2C14H8O5(2-)*2Zn(2+)*2C15H15N

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide at 120℃; for 2h; Sealed tube;91%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

2-amino-phenol
95-55-6

2-amino-phenol

N-(2-hydroxyphenyl)-4-{3-[(2-hydroxyphenyl)carbamoyl]phenoxy}benzamide
305360-30-9

N-(2-hydroxyphenyl)-4-{3-[(2-hydroxyphenyl)carbamoyl]phenoxy}benzamide

Conditions
ConditionsYield
Stage #1: oxybis(benzoic acid) With tert-butyl chloroformate; triethylamine In tetrahydrofuran at -78℃;
Stage #2: 2-amino-phenol With sodium hydroxide In tetrahydrofuran; water for 2h;
91%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

1,2-diamino-benzene
95-54-5

1,2-diamino-benzene

4,4'-bis(2-benzimidazole)-diphenylether
18509-48-3

4,4'-bis(2-benzimidazole)-diphenylether

Conditions
ConditionsYield
With Eaton′s Reagent at 130℃; for 1h; Inert atmosphere;90%
zinc(II) nitrate hexahydrate

zinc(II) nitrate hexahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

3,5-diethyl-4-(4'-pyridyl)pyrazole

3,5-diethyl-4-(4'-pyridyl)pyrazole

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

[Zn7O2(3,5-diethyl-4-(4'-pyridyl)pyrazole-(1H))2(4,4'-oxybisbenzoic acid-(2H))4]2 N,N-dimethylformamide dihydrate

[Zn7O2(3,5-diethyl-4-(4'-pyridyl)pyrazole-(1H))2(4,4'-oxybisbenzoic acid-(2H))4]2 N,N-dimethylformamide dihydrate

Conditions
ConditionsYield
In methanol at 150℃; for 72h; Sealed tube; Autoclave;90%
oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

zinc(II) acetate dihydrate
5970-45-6

zinc(II) acetate dihydrate

N1,N4-bis((pyridin-4-yl)-methylene)benzene-1,4-diamine

N1,N4-bis((pyridin-4-yl)-methylene)benzene-1,4-diamine

[Zn(oba)(4-bpmb)0.5]n

[Zn(oba)(4-bpmb)0.5]n

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 100℃; for 8.25h;90%
cobalt(II) nitrate hexahydrate

cobalt(II) nitrate hexahydrate

oxybis(benzoic acid)
2215-89-6

oxybis(benzoic acid)

2,8-di(1H-imidazol-1-yl)dibenzofuran

2,8-di(1H-imidazol-1-yl)dibenzofuran

water
7732-18-5

water

3H2O*2Co(2+)*2C18H12N4O*2C14H8O5(2-)

3H2O*2Co(2+)*2C18H12N4O*2C14H8O5(2-)

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 95℃; for 72h; Autoclave;90%

2215-89-6Relevant articles and documents

Synthesis method of 4,4'-diphenyl ether dicarboxylic acid

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, (2020/05/01)

The invention discloses a 4,4'-diphenyl ether dicarboxylic acid synthesis method, which comprises: S1, carrying out a dehydration reaction on p-hydroxybenzoate, an alkali and a solvent at a temperature of 110-120 DEG C for 2-4 h under a protection gas to obtain a mixed solution; S2, adding a catalyst and p-halo benzoate into the mixed solution obtained in the step S1, carrying out a heating coupling reaction at a reaction temperature of 145-195 DEG C, adding a solvent after the reaction is finished, and performing extraction, liquid separation and crystallization to obtain a solid 4,4'-diphenyl ether dicarboxylic acid diester; and S3, carrying out heating hydrolyzing on the 4,4'-diphenyl ether dicarboxylic acid diester obtained in the step S2 in an aqueous alkali solution and a solvent, adding an acid to adjust the pH value to be acidic, and carrying out crystallization and filtration to obtain the 4,4'-diphenyl ether dicarboxylic acid. The method is simple in process operation, low inequipment requirement, high in product purity, less in three wastes generated in the production process, environment-friendly and high in industrial feasibility, and the total yield of the two-step reaction can reach more than 80%.

Method for preparation of 4, 4'-oxybisbenzoic acid by catalytic oxidation of Anderson type polyacid

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Paragraph 0034; 0036; 0038; 0040; 0042, (2018/09/20)

The invention discloses a method for preparation of 4, 4'-oxybisbenzoic acid by catalytic oxidation of Anderson type polyacid. The specific steps include: 1) subjecting di-p-tolyl ether, a heteropolyacid catalyst, an oxidant and an additive to oxidation reaction in a solvent; 2) at the end of the oxidation reaction, filtering out the heteropolyacid catalyst, and performing extraction to obtain anorganic phase and an aqueous phase; and 3) carrying out drying, filtering, concentration and purification on the organic phase in order to obtain 4, 4'-oxybisbenzoic acid, wherein the heteropolyacid catalyst is an Anderson polyacid parent or Anderson polyacid modified parent. The method provided by the invention adopts Anderson polyacid as the catalyst, which has the characteristics of high reaction activity, mild reaction conditions, environmental friendliness, high specificity and selectivity, recyclability, and is suitable for industrial production. Hydrogen peroxide, air or oxygen is adopted as the oxidant, can lower the cost, and also can reduce the emissions of three wastes and alleviate environmental protection pressure.

Facile aerobic photooxidation of methyl group in the aromatic nucleus in the presence of an organocatalyst under VIS irradiation

Tada, Norihiro,Hattori, Kasumi,Nobuta, Tomoya,Miura, Tsuyoshi,Itoh, Akichika

supporting information; experimental part, p. 1669 - 1671 (2011/08/10)

We report a useful method for a facile synthesis of carboxylic acids from methyl aromatics by aerobic photooxidation using VIS irradiation and easily handled 2-chloroanthraquinone as organic catalysts under mild conditions such as an air atmosphere and ambient pressure and temperature. This is a more environmentally benign oxidation than previous methods, which require drastic reaction conditions.

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