Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Product Name
- Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- CAS No.
- 1220968-24-0
- Chemical Name
- Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Synonyms
- ethyl 2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazol-1-yl]propanoate;Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate;1H-Pyrazole-1-acetic acid, α-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, ethyl ester
- CBNumber
- CB33065968
- Molecular Formula
- C14H23BN2O4
- Formula Weight
- 294.15
- MOL File
- 1220968-24-0.mol
Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate Property
- Boiling point:
- 394.1±22.0 °C(Predicted)
- Density
- 1.11±0.1 g/cm3(Predicted)
- storage temp.
- 2-8°C(protect from light)
- pka
- 1.51±0.10(Predicted)
- Appearance
- Colorless to light yellow Liquid
N-Bromosuccinimide Price
- Product number
- E938333
- Product name
- Ethyl2-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Packaging
- 50mg
- Price
- $220
- Updated
- 2021/12/16
- Product number
- 2288AQ
- Product name
- ethyl2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Packaging
- 250mg
- Price
- $357.2
- Updated
- 2021/12/16
- Product number
- CD11324178
- Product name
- Ethyl2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Purity
- 95+%
- Packaging
- 1g
- Price
- $396
- Updated
- 2021/12/16
- Product number
- 1220968240
- Product name
- Ethyl2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Packaging
- 1g
- Price
- $424
- Updated
- 2021/12/16
- Product number
- 21-2826
- Product name
- ethyl2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate
- Purity
- 95%-98%
- Packaging
- 1g
- Price
- $440
- Updated
- 2021/12/16
Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate Chemical Properties,Usage,Production
Synthesis
269410-08-4
535-11-5
1220968-24-0
The reaction was carried out in the presence of cesium carbonate (1.5 g, 4.6 mmol) in acetonitrile (8 mL) at 90 °C with stirring for 4 h. The reaction was carried out in the presence of cesium carbonate (1.5 g, 4.6 mmol) at 90 °C for 4 h. The reaction was completed by cooling to room temperature and quenching the reaction with aqueous Na2CO3. After completion of the reaction, the reaction was cooled to room temperature, quenched with aqueous Na2CO3, extracted with ethyl acetate (3 × 20 mL), and the organic phases were combined and washed with brine. The organic layer was dried over anhydrous MgSO4, filtered and concentrated under reduced pressure. The crude product was purified by fast chromatography on a silica gel column eluting with gradient of ethyl acetate/hexane (0-50%) to afford the target compound ethyl 2-(4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propionate (0.42 g, 61% yield).LCMS (M+H)+: m/z=295.1.
References
[1] Patent: US2012/165305, 2012, A1. Location in patent: Page/Page column 43
[2] Patent: US2014/296316, 2014, A1. Location in patent: Paragraph 0193; 0194; 0195
Ethyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propanoate Preparation Products And Raw materials
Raw materials
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