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CAS No.: | 6921-22-8 |
---|---|
Name: | 2,3-Difluoronitrobenzene |
Article Data: | 5 |
Molecular Structure: | |
Formula: | C6H3 F2 N O2 |
Molecular Weight: | 159.092 |
Synonyms: | 1,2-Difluoro-3-nitrobenzene;2,3-Difluoro-1-nitrobenzene; 2,3-Difluoronitrobenzene |
EINECS: | 230-035-9 |
Density: | 1.45 g/cm3 |
Boiling Point: | 219 °C at 760 mmHg |
Flash Point: | 93.1 °C |
Hazard Symbols: | Xi |
PSA: | 45.82000 |
LogP: | 2.39620 |
Conditions | Yield |
---|---|
With dihydrogen peroxide; trifluoroacetic anhydride In dichloromethane; water at 0 - 20℃; | 57% |
Stage #1: 2,3-difluoroanilline With tetrafluoroboric acid; sodium nitrite In water at 0℃; for 1.33333h; Stage #2: With copper In water for 1.33333h; | 25% |
triethylsilane
2,3,4-trifluoronitrobenzene
A
triethylsilyl fluoride
B
1,2-difluoro-3-nitrobenzene
Conditions | Yield |
---|---|
With dmap; (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene)AuH In dichloromethane at 40℃; for 12h; Inert atmosphere; | A n/a B 53% |
Conditions | Yield |
---|---|
With 4,5-bis-(di-tert-butyl-phosphanyl)-9,9-dimethyl-9H-xanthene; [t-BuXantphosAu]+[Cl-Au-Cl]-; diphenylsilane; acetic acid In 1,2-dichloro-ethane at 80℃; for 24h; Inert atmosphere; | 12 %Spectr. |
2,3,4-trifluoronitrobenzene
A
3,4-difluoronitrobenzene
B
1,2-difluoro-3-nitrobenzene
C
2,3,4-trifluoroaniline
Conditions | Yield |
---|---|
With Dimethylphenylsilane; o-phenylenebis(diphenylphosphine); potassium tert-butylate; copper(l) chloride In tetrahydrofuran for 12h; Inert atmosphere; Reflux; Overall yield = 95 %Spectr.; regioselective reaction; |
Conditions | Yield |
---|---|
With potassium carbonate In 1,4-dioxane; ethanol at 20℃; Inert atmosphere; | 100% |
With lithium aluminium tetrahydride In methanol; ethanol at 70℃; for 0.75h; Inert atmosphere; Sealed tube; UV-irradiation; | 100% |
In methanol; ethanol at 70℃; for 0.5h; Microwave heating; |
1,2-difluoro-3-nitrobenzene
phenylmethanethiol
2-(benzylsulfanyl)-1-fluoro-3-nitrobenzene
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 2h; regioselective reaction; | 99% |
tert-butyl N-methyl-N-(piperidin-4-ylmethyl)carbamate
1,2-difluoro-3-nitrobenzene
tert-butyl (1-(2-fluoro-6-nitrophenyl)piperidin-4-yl)methyl(methyl)carbamate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile at 80℃; for 18h; | 99% |
1,2-difluoro-3-nitrobenzene
ethanolamine
2-[(2-fluoro-6-nitrophenyl)amino]ethanol
Conditions | Yield |
---|---|
In ethanol at 20℃; | 97% |
isonipecotic acid methyl ester
1,2-difluoro-3-nitrobenzene
methyl 1-(2-fluoro-6-nitrophenyl)piperidine-4-carboxylate
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In acetonitrile at 80℃; | 97% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 65℃; | 90% |
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