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CAS RN: 36805-97-7 | 产品编码: D1303
N,N-Dimethylformamide Di-tert-butyl Acetal [for Esterification]
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技术规格
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(with Total Nitrogen) | min. 98.0 % |
| Effect test of GC derivalization | Effective as derivatization agent Myristic Acid |
| NMR | confirm to structure |
物性（参考值）
| 沸点 | 57 °C/8 mmHg |
| 闪点 | 33 °C |
| 比重 | 0.85 |
| 折射率 | 1.41 |
GHS
| 象形图 |
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| 信号词 | Warning |
| 危险性说明 | H315 : Causes skin irritation. H319 : Causes serious eye irritation. 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. P264 : Wash skin thoroughly after handling. 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. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. 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* | 2922.19-000 |
应用
TCI Practical Example: Esterification Using N,N-DMF Di-tert-Butyl Acetal
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Used Chemicals
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Procedure
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To a solution of N-acetyl-L-phenylalanine (1.0 g, 4.78 mmol) in DMF di-tert-butyl acetal (6.9 mL, 28.7 mmol, 6.0 eq.) was stirred at 60 °C for overnight. The solvent was removed under reduced pressure and the residue was purified by column chromatography (ethyl acetate:hexane = 1:1 on silica gel), giving tert-butyl acetyl-L-phenylalaninate as a colorless oil (1.20 g, 94% yield).
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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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tert-Butyl Acetyl-L-phenylalaninate
1H NMR (400 MHz, CDCl3); δ 7.28–7.19 (m, 3H), 7.13-7.11 (m, 2H), 5.92 (br d, 1H, J = 7.6 Hz), 4.76–4.71 (m, 1H), 3.07 (d, 2H, J = 6.0 Hz), 1.96 (s, 3H), 1.38 (s, 9H).
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Lead Reference
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- Design and synthesis of novel macrocyclic 2-amino-6-arylpyrimidine Hsp90 inhibitors
应用
Esterification Reagent for GC Derivatization
Experimental procedure: Fatty acid (~ 5 mg) is placed into a vial and then N,N-dimethylformamide di-tert-butyl acetal (100 μL) is added. The reaction is completed upon dissolution. The reaction mixture can be injected directly into GC.
References
- Fatty Acid Esterification with N,N-Dimethylformamide Dialkyl Acetals for GC Analysis
参考文献
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技术规格
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