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CAS RN: 479-27-6 | 产品编码: D0102
1,8-Diaminonaphthalene
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技术规格
| Appearance | Light yellow to Brown powder to lump |
| Purity(Nonaqueous Titration) | min. 98.0 % |
| Melting point | 63.0 to 67.0 °C |
物性（参考值）
| 熔点 | 65 °C |
| 沸点 | 205 °C |
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. H317 : May cause an allergic skin reaction. H341 : Suspected of causing genetic defects. H412 : Harmful to aquatic life with long lasting effects. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P273 : Avoid release to the environment. P272 : Contaminated work clothing should not be allowed out of the workplace. P202 : Do not handle until all safety precautions have been read and understood. P201 : Obtain special instructions before use. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P308 + P313 : IF exposed or concerned: Get medical advice/ attention. 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. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. P405 : Store locked up. |
相关法规
运输信息
| HS编码* | 2921.59-000 |
应用
TCI Practical Example: Protection of the Boronic Acid with 1,8-Diaminonaphthalene
Used Chemicals
Procedure
To a reaction vessel, 1,8-diaminonaphthalene (1.5 g, 9.5 mmol), 3,5-dibromophenyl boronic acid (2.5 g, 8.9 mmol), toluene (30 mL) were subsequently added and refluxed for 2 hours. Consumption of the starting material was confirmed by TLC. The reaction mixture was cooled to room temperature and was filtered under reduced pressure. The solid was washed with toluene to obtain 1 (2.9 g, 81% yield) as a reddish white powder.
Experimenter’s Comments
The reaction mixture was monitored by TLC (hexane:ethyl acetate = 4:1, Rf = 0.5).
Analytical Data
1H NMR (400 MHz, CDCl3); δ 7.76 (t, 1H, J = 1.8 Hz), 7.67 (d, 2H, J = 1.8 Hz), 7.15 (m, 2H), 7.08 (m, 2H), 6.42 (d, 2H, J = 7.3 Hz), 5.94 (br, 2H).
Lead Reference
- Flexible, Bowl-Shaped N-Heterocyclic Carbene Ligands: Substrate Specificity in Iridium-Catalyzed Ketone Hydrosilylation
Other References
- Boron-Masking Strategy for the Selective Synthesis of Oligoarenes via Iterative Suzuki−Miyaura Coupling
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