tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate
- Product Name
- tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate
- CAS No.
- 154590-34-8
- Chemical Name
- tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate
- Synonyms
- 1-Boc-4-(2-Fluoro-4-nitrophenyl)piperazine,97%;1-Boc-4-(2-Fluoro-4-nitrophenyl)piperazine, 97%;4-(2-Fluoro-4-nitrophenyl)piperazine, N1-BOC protected;tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate;3-Fluoro-4-[4-(tert-butoxycarbonyl)piperazin-1-yl]nitrobenzene;1-Piperazinecarboxylic acid, 4-(2-fluoro-4-nitrophenyl)-, 1,1-dimethylethyl ester
- CBNumber
- CB11261843
- Molecular Formula
- C15H20FN3O4
- Formula Weight
- 325.34
- MOL File
- 154590-34-8.mol
tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate Property
- Melting point:
- 153-155 °C(Solv: ethyl ether (60-29-7))
- Boiling point:
- 453.5±45.0 °C(Predicted)
- Density
- 1.270±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- form
- Solid
- pka
- 0.11±0.10(Predicted)
- Appearance
- Light yellow to yellow Solid
- CAS DataBase Reference
- 154590-34-8
Safety
- HS Code
- 2933599590
N-Bromosuccinimide Price
- Product number
- CS-M3038
- Product name
- 3-Fluoro-4-[4-(tert-butoxycarbonyl)piperazin-1-yl]nitrobenzene
- Packaging
- 1g
- Price
- $57
- Updated
- 2021/12/16
- Product number
- Z4208
- Product name
- tert-Butyl4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate
- Packaging
- 1g
- Price
- $151
- Updated
- 2021/12/16
- Product number
- 4H51-3-44
- Product name
- 4-(2-Fluoro-4-nitrophenyl)piperazine, N1-Boc protected
- Packaging
- 1g
- Price
- $151
- Updated
- 2021/12/16
- Product number
- PC8776
- Product name
- 4-(2-Fluoro-4-nitrophenyl)piperazine,N1-BOCprotected
- Packaging
- 5g
- Price
- $174
- Updated
- 2021/12/16
- Product number
- 046130
- Product name
- tert-Butyl 4-(2-fluoro-4-nitrophenyl)tetrahydro-1(2H)-pyrazinecarboxylate
- Purity
- >95%
- Packaging
- 500mg
- Price
- $181
- Updated
- 2021/12/16
tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate Chemical Properties,Usage,Production
Synthesis
24424-99-5
154590-33-7
154590-34-8
General procedure for the synthesis of tert-butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate: 1. 1-(2-fluoro-4-nitrophenyl)piperazine (12.5 g, 55.8 mmol) was dissolved in 1,4-dioxane (108 mL) under cooling conditions in an ice bath. 2. 1N sodium hydroxide solution (54 mL) and di-tert-butyl dicarbonate (14 mL, 61.38 mmol) were added sequentially to the above solution. 3. The temperature of the reaction mixture was adjusted to 25-35°C and stirred continuously for 0.5 hours. 4. Upon completion of the reaction, the mixture was poured into ice-cold water (200 mL) and a yellow precipitate was precipitated. 5. The precipitate was collected by filtration through a Büchner funnel to afford the target product tert-butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate (18.0 g, 99% yield). Product characterization data: 1H NMR (CDCl3): δ 8.01-7.88 (m, 2H), 6.93 (t, J = 8.6 Hz, 1H), 3.61 (t, J = 4.9 Hz, 4H), 3.24 (t, J = 4.9 Hz, 4H), 1.49 (s, 9H). IR (KBr, cm-1): 3119, 1692, 1605, 1512. CI-MS (m/z): 326 (M++1), 270, 240, 226, 195, 183, 131, 96.
References
[1] Patent: WO2005/82892, 2005, A2. Location in patent: Page/Page column 61
[2] Patent: CN107033095, 2017, A. Location in patent: Paragraph 0085; 0086
[3] Bioorganic and Medicinal Chemistry Letters, 2005, vol. 15, # 19, p. 4261 - 4267
[4] Patent: US2004/220194, 2004, A1. Location in patent: Page 13; 14
[5] Patent: US2005/239795, 2005, A1. Location in patent: Page/Page column 18
tert-Butyl 4-(2-fluoro-4-nitrophenyl)piperazine-1-carboxylate Preparation Products And Raw materials
Raw materials
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