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CAS RN: 2567792-04-3 | 产品编码: U0150
(tert-Butoxyimino)-λ4-sulfanone
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技术规格
| Appearance | Colorless to Light yellow clear liquid |
| Purity(GC) | min. 98.0 % |
| NMR | confirm to structure |
物性（参考值）
| 沸点 | 75 °C/30 mmHg |
| 闪点 | 27 °C |
| 比重 | 1.06 |
GHS
| 象形图 |
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| 信号词 | Warning |
| 危险性说明 | H226 : Flammable liquid and vapor. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P240 : Ground/bond container and receiving equipment. P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking. P233 : Keep container tightly closed. P243 : Take precautionary measures against static discharge. P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment. P242 : Use only non-sparking tools. P280 : Wear protective gloves/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P403 + P235 : Store in a well-ventilated place. Keep cool. |
相关法规
运输信息
| UN编号 | UN1993 |
| 类别 | 3 |
| 包装类别 | III |
| HS编码* | 2930.90-900 |
应用
Reagent for Primary Sulfonamide Synthesis
References
- Primary Sulfonamide Synthesis Using the Sulfinylamine Reagent N-Sulfinyl-O-(tert-butyl)hydroxylamine, t-BuONSO
- Direct one step dehydrogenative C-H sulfonimidation of unfunctionalized arenes: A conveneient protocol to emerging medicinal chemistry motifs without prefunctionalized arenes
应用
TCI Practical Example: Synthesis of primary sulfonamides using tBuONSO
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Used Chemicals
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Procedure
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To a solution of tBuONSO (400 mg, 2.96 mmol), in THF (anhydrous, 12 mL) was added p-tolylmagnesium bromide (19% in tetrahydrofuran, ca. 1mol/L, 4.4 mL, 4.4 mmol) at -78 °C and the mixture was stirred at -78 °C for 1 hour. The suspension was warmed at room temperature and stirred for overnight. After that, methanol (1 mL) was add to the reaction mixture and the solvent was removed under reduced pressure. The residue was purified by column chromatography (ethyl acetate:hexane = 0:1 - 1:4 on silica gel) to give 4-methylbenzenesulfonamide as a white solid (407 mg, 80%).
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Experimenter’s Comments
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The reaction mixture was monitored by UPLC.
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Analytical Data
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4-Methylbenzenesulfonamide
1H NMR (400 MHz, CDCl3); δ 7.70 (d, 2H, J = 8.4 Hz), 7.36 (d, 2H, J = 8.1 Hz), 7.27 (brs, 2H), 2.33 (s, 3H).
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Lead Reference
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- Primary Sulfonamide Synthesis Using the Sulfinylamine Reagent N‑Sulfinyl‑O‑(tert-butyl)hydroxylamine, t‑BuONSO
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