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696-23-1 Usage

Chemical Properties

solid

Uses

Different sources of media describe the Uses of 696-23-1 differently. You can refer to the following data:
1. Floconazole impurity.
2. 2-Methyl-4(5)-nitroimidazole was used to study the mechanism of both the alkaline and acidic hydrolysis of tinidazole.

General Description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Check Digit Verification of cas no

The CAS Registry Mumber 696-23-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 696-23:
(5*6)+(4*9)+(3*6)+(2*2)+(1*3)=91
91 % 10 = 1
So 696-23-1 is a valid CAS Registry Number.
InChI:InChI=1/C4H5N3O2/c1-3-5-2-4(6-3)7(8)9/h2H,1H3,(H,5,6)

696-23-1 Well-known Company Product Price

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

  • (A12569)  2-Methyl-4(5)-nitroimidazole, 99%   

  • 696-23-1

  • 50g

  • 323.0CNY

  • Detail
  • Alfa Aesar

  • (A12569)  2-Methyl-4(5)-nitroimidazole, 99%   

  • 696-23-1

  • 250g

  • 1211.0CNY

  • Detail
  • Alfa Aesar

  • (A12569)  2-Methyl-4(5)-nitroimidazole, 99%   

  • 696-23-1

  • 1000g

  • 4363.0CNY

  • Detail
  • Sigma-Aldrich

  • (PHR1195)  2-Methyl-5-nitroimidazole  pharmaceutical secondary standard; traceable to USP and PhEur

  • 696-23-1

  • PHR1195-500MG

  • 952.15CNY

  • Detail
  • Sigma-Aldrich

  • (Y0000087)  MetronidazoleimpurityA  European Pharmacopoeia (EP) Reference Standard

  • 696-23-1

  • Y0000087

  • 1,880.19CNY

  • Detail
  • Sigma-Aldrich

  • (Y0000899)  TinidazoleimpurityA  European Pharmacopoeia (EP) Reference Standard

  • 696-23-1

  • Y0000899

  • 1,880.19CNY

  • Detail
  • USP

  • (1667530)  TinidazoleRelatedCompoundA  United States Pharmacopeia (USP) Reference Standard

  • 696-23-1

  • 1667530-100MG

  • 14,578.20CNY

  • Detail
  • Sigma-Aldrich

  • (32542)  Menidazole  VETRANAL, analytical standard

  • 696-23-1

  • 32542-10MG

  • 2,087.28CNY

  • Detail
  • Aldrich

  • (136255)  2-Methyl-4(5)-nitroimidazole  99%

  • 696-23-1

  • 136255-50G

  • 345.15CNY

  • Detail
  • Aldrich

  • (136255)  2-Methyl-4(5)-nitroimidazole  99%

  • 696-23-1

  • 136255-250G

  • 1,323.27CNY

  • Detail

696-23-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-Methyl-4(5)-nitroimidazole

1.2 Other means of identification

Product number -
Other names 1H-Imidazole, 2-methyl-4-nitro-

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:696-23-1 SDS

696-23-1Synthetic route

2-methylimidazole
693-98-1

2-methylimidazole

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

Conditions
ConditionsYield
With sulfuric acid; nitric acid; sodium sulfate at 80℃; for 0.0363889h; Temperature; Microwave irradiation;90.5%
With sulfuric acid; nitric acid In diethyl ether at 0 - 140℃;39%
With sulfuric acid; nitric acid
With sulfuric acid; nitric acid; sodium sulfate In water at 130 - 132℃; for 4h;
With sulfuric acid; nitric acid; sodium sulfate at 150℃; for 2h;3.8 g
2-methylimidazole
693-98-1

2-methylimidazole

A

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

B

2-(dinitromethylene)-5,5-dinitro-4-imidazolidinone
214191-53-4

2-(dinitromethylene)-5,5-dinitro-4-imidazolidinone

C

ammonium salt of parabanic acid

ammonium salt of parabanic acid

Conditions
ConditionsYield
With sulfuric acid; nitric acid for 3h; Nitration;
2-methylimidazole
693-98-1

2-methylimidazole

A

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

B

ammonium salt of parabanic acid

ammonium salt of parabanic acid

Conditions
ConditionsYield
With sulfuric acid; nitric acid Nitration;A 0.5 g
B 4.5 g
1,4-Dihydro-2,6-dimethyl-4-(2-methyl-5-nitroimidazol-1-yl)methylpyridin-3,5-dicarbonsaeuredimethylester

1,4-Dihydro-2,6-dimethyl-4-(2-methyl-5-nitroimidazol-1-yl)methylpyridin-3,5-dicarbonsaeuredimethylester

A

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

B

dimethyl 2,6-dimethylpyridine-3,5-dicarboxylate
27525-74-2

dimethyl 2,6-dimethylpyridine-3,5-dicarboxylate

Conditions
ConditionsYield
With ammonium cerium(IV) nitrate Product distribution; Decomposition;
2-methylimidazole
693-98-1

2-methylimidazole

A

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

B

2-methyl-4-nitro-1H-imidazole
696-23-1

2-methyl-4-nitro-1H-imidazole

Conditions
ConditionsYield
With sulfuric acid; nitric acid In water at 130 - 132℃; for 4h;
metronidazole
443-48-1

metronidazole

A

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

B

2-(5-amino-2-methyl-1H-imidazol-1-yl)ethan-1-ol
84145-87-9

2-(5-amino-2-methyl-1H-imidazol-1-yl)ethan-1-ol

C

N-(2'-hydroxyethyl)-2-methylimidazole
1615-15-2

N-(2'-hydroxyethyl)-2-methylimidazole

Conditions
ConditionsYield
With sodium tetrahydroborate; iron at 25℃; pH=7;
4-iodo-2-methyl-5-nitro-1H-imidazole
13369-83-0

4-iodo-2-methyl-5-nitro-1H-imidazole

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In methanol at 25℃; under 50 Torr; for 0.333333h; Pressure;89 %Chromat.
4-bromo-2-methyl-5-nitroimidazole
18874-52-7

4-bromo-2-methyl-5-nitroimidazole

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In methanol at 25℃; under 100 Torr; for 0.5h; Pressure;47 %Chromat.
2-(5-bromopentyl)-5-(2,4-dichlorophenyl)-1,3,4-oxadiazole

2-(5-bromopentyl)-5-(2,4-dichlorophenyl)-1,3,4-oxadiazole

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

2-(2,4-dichlorophenyl)-5-(5-(2-methyl-5-nitro-1H-imidazol-1-yl)pentyl)-1,3,4-oxadiazole

2-(2,4-dichlorophenyl)-5-(5-(2-methyl-5-nitro-1H-imidazol-1-yl)pentyl)-1,3,4-oxadiazole

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 12h;99.9%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

methanesulfonic acid 7-[tert-butoxycarbonyl-(2-tert-butoxycarbonylamino-ethyl)-amino]-6-{[tert-butoxycarbonyl-(2-tert-butoxycarbonylamino-ethyl)-amino]-methyl}-heptyl ester
663612-70-2

methanesulfonic acid 7-[tert-butoxycarbonyl-(2-tert-butoxycarbonylamino-ethyl)-amino]-6-{[tert-butoxycarbonyl-(2-tert-butoxycarbonylamino-ethyl)-amino]-methyl}-heptyl ester

(2-tert-butoxycarbonylamino-ethyl)-[2-{[tert-butoxycarbonyl-(2-tert-butoxycarbonylamino-ethyl)-amino]-methyl}-7-(2-methyl-4-nitro-imidazol-1-yl)-heptyl]-carbamic acid tert-butyl ester
663612-73-5

(2-tert-butoxycarbonylamino-ethyl)-[2-{[tert-butoxycarbonyl-(2-tert-butoxycarbonylamino-ethyl)-amino]-methyl}-7-(2-methyl-4-nitro-imidazol-1-yl)-heptyl]-carbamic acid tert-butyl ester

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide98%
bromoacetic acid tert-butyl ester
5292-43-3

bromoacetic acid tert-butyl ester

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

tert-butyl 2-(2-methyl-5-nitroimidazol-1-yl)acetate

tert-butyl 2-(2-methyl-5-nitroimidazol-1-yl)acetate

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 50℃; for 0.5h;
Stage #2: bromoacetic acid tert-butyl ester In acetonitrile Reflux;
95.6%
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 50℃; for 0.5h;
Stage #2: bromoacetic acid tert-butyl ester In acetonitrile Reflux;
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

acrylic acid methyl ester
292638-85-8

acrylic acid methyl ester

methyl 3-(2-methyl-5-nitro-1H-imidazol-1-yl)propanoate
1273542-72-5

methyl 3-(2-methyl-5-nitro-1H-imidazol-1-yl)propanoate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 168h; Michael Addition; Inert atmosphere;95.6%
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 168h; Inert atmosphere;95.6%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

dimethyl sulfoxide
67-68-5

dimethyl sulfoxide

2-methyl-1-methylthiomethyl-5-nitroimidazole

2-methyl-1-methylthiomethyl-5-nitroimidazole

Conditions
ConditionsYield
for 50h; Heating;95%
vinyl acetate
108-05-4

vinyl acetate

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

1-(2-methyl-4-nitro-1H-imidazol-1-yl)ethyl acetate

1-(2-methyl-4-nitro-1H-imidazol-1-yl)ethyl acetate

Conditions
ConditionsYield
With potassium phosphate In N,N-dimethyl-formamide at 20℃; for 10h; aza-Markovnikov addition;95%
2-phenyl-3-((3-bromopropoxy)methyl)-imidazo[2,1-b] benzothiazole

2-phenyl-3-((3-bromopropoxy)methyl)-imidazo[2,1-b] benzothiazole

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

2-phenyl-3-((3-(2-methyl-5-nitro-1H-imidazol-1-yl)propoxy) methyl)-imidazo[2,1-b]benzothiazole

2-phenyl-3-((3-(2-methyl-5-nitro-1H-imidazol-1-yl)propoxy) methyl)-imidazo[2,1-b]benzothiazole

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile Heating;
Stage #2: 2-phenyl-3-((3-bromopropoxy)methyl)-imidazo[2,1-b] benzothiazole In acetonitrile Heating;
94.6%
2-phenyl-3-((3-bromopropoxy)methyl)-imidazo[2,1-b] benzothiazole

2-phenyl-3-((3-bromopropoxy)methyl)-imidazo[2,1-b] benzothiazole

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

C23H21N5O3S

C23H21N5O3S

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 60℃; for 1h;
Stage #2: 2-phenyl-3-((3-bromopropoxy)methyl)-imidazo[2,1-b] benzothiazole In acetonitrile at 60℃;
94.2%
vinyl n-butyrate
123-20-6

vinyl n-butyrate

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

1-(2-methyl-4-nitro-1H-imidazol-1-yl)ethyl butyrate

1-(2-methyl-4-nitro-1H-imidazol-1-yl)ethyl butyrate

Conditions
ConditionsYield
With potassium phosphate In N,N-dimethyl-formamide at 20℃; for 30h; aza-Markovnikov addition;94%
3-chloropropiophenone
936-59-4

3-chloropropiophenone

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

3-(2-methyl-5-nitro-1H-imidazol-1-yl)-1-phenylpropan-1-one
38938-81-7

3-(2-methyl-5-nitro-1H-imidazol-1-yl)-1-phenylpropan-1-one

Conditions
ConditionsYield
With triethylamine In toluene at 20℃; Reflux;94%
vinyl benzoate
769-78-8

vinyl benzoate

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

1-(2-methyl-4-nitro-1H-imidazol-1-yl)ethyl benzoate

1-(2-methyl-4-nitro-1H-imidazol-1-yl)ethyl benzoate

Conditions
ConditionsYield
With potassium phosphate In N,N-dimethyl-formamide at 50℃; for 30h; aza-Markovnikov addition;93%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

4-bromo-2-methyl-5-nitroimidazole
18874-52-7

4-bromo-2-methyl-5-nitroimidazole

Conditions
ConditionsYield
With bromine; sodium carbonate In N,N-dimethyl-formamide at 70℃; for 2h;93%
With bromine In N,N-dimethyl-formamide at 40℃; for 4h; Cooling with ice;75%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

1-phenyl-2-bromoethane
103-63-9

1-phenyl-2-bromoethane

2-methyl-4-nitro-1-phenethyl-1H-imidazole
195046-60-7

2-methyl-4-nitro-1-phenethyl-1H-imidazole

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 8h; Schlenk technique; Inert atmosphere;93%
C21H21BrN2O2S

C21H21BrN2O2S

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

C25H25N5O4S

C25H25N5O4S

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 60℃; for 1h;
Stage #2: C21H21BrN2O2S In acetonitrile at 60℃;
93%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

methanesulfonic acid 6,6-bis-(2-tert-butoxycarbonylamino-ethylcarbamoyl)-hexyl ester
327065-15-6

methanesulfonic acid 6,6-bis-(2-tert-butoxycarbonylamino-ethylcarbamoyl)-hexyl ester

{2-[2-(2-tert-butoxycarbonylamino-ethylcarbamoyl)-7-(2-methyl-4-nitro-imidazol-1-yl)-heptanoylamino]-ethyl}-carbamic acid tert-butyl ester
327065-17-8

{2-[2-(2-tert-butoxycarbonylamino-ethylcarbamoyl)-7-(2-methyl-4-nitro-imidazol-1-yl)-heptanoylamino]-ethyl}-carbamic acid tert-butyl ester

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide92%
C21H21BrN2OS

C21H21BrN2OS

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

C25H25N5O3S

C25H25N5O3S

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 60℃; for 1h;
Stage #2: C21H21BrN2OS In acetonitrile at 60℃;
92%
C23H25BrN2O2S

C23H25BrN2O2S

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

C27H29N5O4S

C27H29N5O4S

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 60℃; for 1h;
Stage #2: C23H25BrN2O2S In acetonitrile at 60℃;
91%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

acrylonitrile
107-13-1

acrylonitrile

3-(2-methyl-4-nitro-1H-imidazol-1-yl)propanenitrile
14885-27-9

3-(2-methyl-4-nitro-1H-imidazol-1-yl)propanenitrile

Conditions
ConditionsYield
With potassium carbonate Reflux;90%
With polystyrene-supported CuI-imidazole complex catalyst In N,N-dimethyl-formamide at 100℃; for 10h; Aza-Michael reaction;77%
1,4-dibromo-butane
110-52-1

1,4-dibromo-butane

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

2-methyl-3-(4-(2-methyl-5-nitro-1H-imidazoliumbromide)butyl)-5-nitro-1H-imidazolium bromide

2-methyl-3-(4-(2-methyl-5-nitro-1H-imidazoliumbromide)butyl)-5-nitro-1H-imidazolium bromide

Conditions
ConditionsYield
With silica gel In neat (no solvent) at 100℃; for 4.5h;90%
ethyl 1-(oxiran-2-ylmethyl)-4-oxo-7-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylate
1435910-86-3

ethyl 1-(oxiran-2-ylmethyl)-4-oxo-7-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylate

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

ethyl 1-(2-hydroxy-3-(2-methyl-5-nitro-1H-imidazol-1-yl)propyl)-4-oxo-6-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylate

ethyl 1-(2-hydroxy-3-(2-methyl-5-nitro-1H-imidazol-1-yl)propyl)-4-oxo-6-(trifluoromethyl)-1,4-dihydroquinoline-3-carboxylate

Conditions
ConditionsYield
With potassium carbonate In ethanol at 60℃; for 1.5h;89.3%
1-bromo-2-propanol
19686-73-8

1-bromo-2-propanol

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

secnidazole
3366-95-8

secnidazole

Conditions
ConditionsYield
With potassium carbonate In acetone at 70℃; for 5h; Reagent/catalyst; Temperature;89.1%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

propargyl bromide
106-96-7

propargyl bromide

A

N1-propargyl-2-methyl-4-nitroimidazole
153563-43-0

N1-propargyl-2-methyl-4-nitroimidazole

B

2‐methyl‐5‐nitro‐1‐prop‐2‐ynyl‐1H‐imidazole
22927-54-4

2‐methyl‐5‐nitro‐1‐prop‐2‐ynyl‐1H‐imidazole

Conditions
ConditionsYield
With potassium carbonate In acetone; toluene at 20℃; Inert atmosphere;A n/a
B 89%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

phenoxyethyl bromide
589-10-6

phenoxyethyl bromide

2-methyl-4-nitro-1-(2-phenoxyethyl)-1H-imidazole
16183-76-9

2-methyl-4-nitro-1-(2-phenoxyethyl)-1H-imidazole

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 8h; Schlenk technique; Inert atmosphere;89%
ethyl 6-methyl-1-(oxiran-2-ylmethyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate
1435910-84-1

ethyl 6-methyl-1-(oxiran-2-ylmethyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

ethyl 1-(2-hydroxy-3-(2-methyl-5-nitro-1H-imidazol-1-yl)propyl)-6-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylate

ethyl 1-(2-hydroxy-3-(2-methyl-5-nitro-1H-imidazol-1-yl)propyl)-6-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylate

Conditions
ConditionsYield
With potassium carbonate In ethanol at 60℃; for 1.5h;88.4%
(S)-epichlorohydrin
67843-74-7

(S)-epichlorohydrin

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

(S)-(-)-1-(3-chloro-2-hydroxypropyl)-2-methyl-5-nitroimidazole
16773-42-5

(S)-(-)-1-(3-chloro-2-hydroxypropyl)-2-methyl-5-nitroimidazole

Conditions
ConditionsYield
With aluminum (III) chloride In ethyl acetate at 3 - 5℃;88.2%
With formic acid; sulfuric acid at 30 - 40℃; for 4.5h; Reagent/catalyst; Temperature;83.9%
With formic acid; sulfuric acid at -5 - 15℃; for 2h; Reagent/catalyst;403 g
With boron trifluoride In ethyl acetate at -10 - 15℃; for 5h; Darkness; Large scale;3.21 kg
With boron trifluoride In ethyl acetate at -10 - 15℃; for 5h; Darkness; Large scale;3.21 kg
oxirane
75-21-8

oxirane

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

metronidazole
443-48-1

metronidazole

Conditions
ConditionsYield
With formic acid; sulfuric acid at 80℃; for 12h; Temperature;88%
With formic acid at 50 - 60℃; for 0.5h; Reagent/catalyst; Temperature;74.9%
With phosphoric acid; acetic anhydride In water at 25 - 30℃; for 2.5h; Yield given;
With sulfuric acid; acetic acid at 90℃; for 0.5h; Concentration; Temperature; Cooling;
With formic acid; sulfuric acid Large scale;
1-bromo-butane
109-65-9

1-bromo-butane

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

1-butyl-2-methyl-4-nitro-1H-imidazole
135009-57-3

1-butyl-2-methyl-4-nitro-1H-imidazole

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 8h; Schlenk technique; Inert atmosphere;88%
2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

dimethyl sulfate
77-78-1

dimethyl sulfate

dimetridazole
551-92-8

dimetridazole

Conditions
ConditionsYield
With formic acid for 4h; Reflux;87%
C26H31BrN2OS

C26H31BrN2OS

2-methyl-5-nitro-1H-imidazole
696-23-1

2-methyl-5-nitro-1H-imidazole

C30H35N5O3S

C30H35N5O3S

Conditions
ConditionsYield
Stage #1: 2-methyl-5-nitro-1H-imidazole With potassium carbonate In acetonitrile at 60℃; for 1h;
Stage #2: C26H31BrN2OS In acetonitrile at 60℃;
87%

696-23-1Relevant articles and documents

Heterogeneous photocatalysis of metronidazole in aquatic samples

Bajkacz, Sylwia,Felis, Ewa,Kasprzyk, Patrycja,Stando, Klaudia

supporting information, (2021/12/24)

Metronidazole (MET) is a commonly detected contaminant in the environment. The compound is classified as poorly biodegradable and highly soluble in water. Heterogeneous photocatalysis is the most promoted water purification method due to the possibility of using sunlight and small amounts of a catalyst needed for the process. The aim of this study was to select conditions for photocatalytic removal of metronidazole from aquatic samples. The effect of catalyst type, mass, and irradiance intensity on the efficiency of metronidazole removal was determined. For this purpose, TiO2, ZnO, ZrO2, WO3, PbS, and their mixtures in a mass ratio of 1:1 were used. In this study, the transformation products formed were identified, and the mineralization degree of compound was determined. The efficiency of metronidazole removal depending on the type of catalyst was in the range of 50–95%. The highest MET conversion (95%) combined with a high degree of mineralization (70.3%) was obtained by using a mixture of 12.5 g TiO2–P25 + PbS (1:1; v/v) and running the process for 60 min at an irradiance of 1000 W m?2. Four MET degradation products were identified by untargeted analysis, formed by the rearrangement of the metronidazole and the C-C bond breaking.

Continuous synthesis method for 2-methyl-5-nitroimidazole

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Paragraph 0017; 0042; 0047-0050; 0055-0058; 0063-0065, (2020/07/15)

The invention provides a continuous synthesis method for 2-methyl-5-nitroimidazole. The 2-methyl-5-nitroimidazole is synthesized in a micro-channel reactor. The synthesis method provided by the invention can realize continuous synthesis, is safe and stable in production process, extremely short in reaction time and high in yield, and can reduce the usage amount of concentrated sulfuric acid and lower cost.

Novel nitroimidazole drug as well as preparation method and application of novel nitroimidazole drug

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Paragraph 0022, (2018/04/01)

The invention relates to a novel nitroimidazole compound as well as a preparation method and application of the novel nitroimidazole compound to medical science and specifically relates to a nitroimidazole compound as shown in a general formula (I), a preparation method of the nitroimidazole compound and a pharmaceutical composition containing the compound. The invention aims at synthesizing a novel compound of a series of nitroimidazole derivatives by modifying the structure of a nitroimidazole compound, the compound can be used for obviously reducing adverse reaction in clinic, meanwhile, the compound has a relatively ideal effect on protecting the liver and kidneys, and the clinical application of the compound is apparent.

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