2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- Product Name
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- CAS No.
- 1202769-66-1
- Chemical Name
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- Synonyms
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol;2-(5-Methyl-1,2-Oxazol-3-Yl)But-3-Yn-2-Ol;2-(5-Methyl-1,2-oxazol-3-yl)-3-butyn-2-ol;a-Ethynyl-a,5-dimethyl-3-isoxazolemethanol;3-Isoxazolemethanol, α-ethynyl-α,5-dimethyl-
- CBNumber
- CB42659686
- Molecular Formula
- C8H9NO2
- Formula Weight
- 151.16
- MOL File
- 1202769-66-1.mol
2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol Property
- Boiling point:
- 256.1±35.0 °C(Predicted)
- Density
- 1.165±0.06 g/cm3(Predicted)
- storage temp.
- 2-8°C
- pka
- 11.23±0.29(Predicted)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- M221003
- Product name
- 2-(5-Methyl-1,2-oxazol-3-yl)but-3-yn-2-ol
- Packaging
- 50mg
- Price
- $200
- Updated
- 2021/12/16
- Product number
- AS45517
- Product name
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- Purity
- 97%
- Packaging
- 250mg
- Price
- $272
- Updated
- 2021/12/16
- Product number
- AS45517
- Product name
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- Purity
- 97%
- Packaging
- 1g
- Price
- $555
- Updated
- 2021/12/16
- Product number
- AS45517
- Product name
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- Purity
- 97%
- Packaging
- 100mg
- Price
- $152
- Updated
- 2021/12/16
- Product number
- 9557DN
- Product name
- 2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol
- Packaging
- 5g
- Price
- $1266
- Updated
- 2021/12/16
2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol Chemical Properties,Usage,Production
Synthesis
24068-54-0
4301-14-8
1202769-66-1
Step 2 - Synthesis of 2-(5-methylisoxazol-3-yl)but-3-yn-2-ol A stirred solution of ethynylmagnesium bromide (0.5 M in THF, 50 mL, 25 mmol) was cooled below 0 °C under nitrogen protection. Subsequently, a tetrahydrofuran (20 mL) solution of 1-(5-methyl-3-isoxazolyl)ethanone (2.5 g, 19.98 mmol) was slowly added dropwise over 5 min. After dropwise addition, the reaction mixture was gradually warmed to room temperature and stirring was continued for 3 hours. Upon completion of the reaction, the reaction was quenched by the addition of saturated ammonium chloride solution (100 mL) and then extracted with ethyl acetate (2 x 100 mL). The organic phases were combined, washed with brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography with the eluent ethyl acetate/petroleum ether (0:1 to 1:4) to afford the target compound 2-(5-methylisoxazol-3-yl)but-3-yn-2-ol (2.3 g, 75%) as a colorless oil. Its 1H NMR (300 MHz, CDCl3) data were as follows: δ 6.12 (s, 1H), 3.47 (s, 1H), 2.63 (s, 1H), 2.42 (s, 3H), 1.86 (s, 3H).
References
[1] Patent: US2012/214762, 2012, A1. Location in patent: Page/Page column 102
[2] Patent: WO2009/158011, 2009, A1. Location in patent: Page/Page column 182
[3] Journal of Medicinal Chemistry, 2017, vol. 60, # 2, p. 627 - 640
2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol Preparation Products And Raw materials
Raw materials
Preparation Products
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