2-Ethyl-5-phenylisoxazolium-3'-sulfonate
2-Ethyl-5-phenylisoxazolium-3'-sulfonate Basic information
- Product Name:
- 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- Synonyms:
-
- NEPIS
- N-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE
- WOODWARDS REAGENT K
- WOODWARD'S REAGENT K
- 2-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULPHONEATE
- Isoxazolium, 2-ethyl-5-(3-sulfophenyl)-, inner salt
- NEPIS 2-ETHYL-5-PHENYLISOXAZOLIUM-3''-SULFONATE
- 3-(2-ETHYL-5-ISOXAZOLIO)BENZENESULFONATE 99+%
- CAS:
- 4156-16-5
- MF:
- C11H11NO4S
- MW:
- 253.27
- EINECS:
- 223-988-7
- Product Categories:
-
- Biochemistry
- Condensation & Active Esterification
- Coupling Reactions (Peptide Synthesis)
- Peptide Synthesis
- Synthetic Organic Chemistry
- Mol File:
- 4156-16-5.mol
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2-Ethyl-5-phenylisoxazolium-3'-sulfonate Chemical Properties
- Melting point:
- 216-219 °C (dec.)
- Density
- 1.3854 (rough estimate)
- refractive index
- 1.4790 (estimate)
- storage temp.
- Store at RT.
- Merck
- 10050
- BRN
- 4149224
- CAS DataBase Reference
- 4156-16-5(CAS DataBase Reference)
MSDS
- Language:English Provider:SigmaAldrich
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2-Ethyl-5-phenylisoxazolium-3'-sulfonate Usage And Synthesis
Chemical Properties
white to off-white crystalline powder
Uses
Peptide-bond former.
Purification Methods
Crystallise the reagent from diethyl ether or ethyl acetate/pet ether. [Lamas et al. J Am Chem Soc 108 5543 1986.] It is best purified by dissolving in excess of aqueous N HCl and precipitating with Me2CO to give a white fluffy solid. [Woodward et al. Tetrahedron 22 Suppl 8 321 1966, Fieser & Fieser Reagents for Organic Synthesis 1 385, 2 198.]
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2-Ethyl-5-phenylisoxazolium-3'-sulfonate(4156-16-5)Related Product Information
- Ethanol
- Ethylparaben
- Ethyl cyanoacetate
- Ethyl pyruvate
- Ethyl formate
- Sulfisoxazole
- ISOXADIFEN-ETHYL
- Sulfamethoxazole
- Isoxazole
- Ethyl acrylate
- Ethyl acetate
- Sulfonates
- Lignin Sulfonate
- 5-Methylisoxazole
- 5-PHENYLISOXAZOLE
- 2-Ethyl-5-phenylisoxazolium-3'-sulfonate
- 2-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE = N-ETHYL-5-PHENYLISOXAZOLIUM-3'-SULFONATE