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CAS RN: 109-80-8 | 产品编码: P0763
1,3-Propanedithiol
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技术规格
| Appearance | Colorless to Light yellow to Light orange clear liquid |
| Purity(GC) | min. 97.0 % |
| Purity(Iodometric Titration) | min. 97.0 % |
物性（参考值）
| 熔点 | -79 °C |
| 沸点 | 170 °C |
| 闪点 | 61 °C |
| 比重 | 1.08 |
| 折射率 | 1.54 |
| 水溶性 | 微溶 |
| 溶解性（可与之混溶） | 醇, 氯仿, 苯, 乙醚 |
GHS
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| 信号词 | Warning |
| 危险性说明 | H302 : Harmful if swallowed. H315 : Causes skin irritation. H319 : Causes serious eye irritation. H227 : Combustible liquid. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P270 : Do not eat, drink or smoke when using this product. P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. 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. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. P403 + P235 : Store in a well-ventilated place. Keep cool. |
相关法规
| RTECS# | TZ2585500 |
运输信息
| HS编码* | 2930.90-900 |
应用
TCI Practical Example: Thioacetal Protection of a formyl group
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Used Chemicals
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Procedure
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Furfural (0.86 mL, 10 mmol) was dissolved in chloroform (10 mL) and cooled to 0 °C. 1,3-Propanedithiol (1.1 mL, 11 mmol) and TMSCl (0.3 mL, 2.0 mmol) were added and the reaction mixture was for 19 hours at room temperature. Ethyl acetate (30 mL) was added to the mixture and the organic layer was washed with brine (30 mL), dried over anhydrous sodium sulfate, and concentrated under reduced pressure. Purification of the crude product by silica gel chromatography (hexane:ethyl acetate = 5:1) afforded 2-(1,3-dithian-2-yl)furan (1, 1.37 g, 71% yield) as a yellow oil.
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Experimenter’s Comments
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Since 1,3-propanedithiol has a foul odor, weighing, reaction, and purification were performed in a draft chamber.
The instruments and effluents were treated with sodium hypochlorite solution after the reaction.
The reaction solution was monitored by UPLC.
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Analytical Data
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2-(1,3-dithian-2-yl)furan (1)
1H NMR (400 MHz, CDCl3); δ 7.32 (m, 1H), 6.40 (m, 1H), 6.26 (m, 1H), 5.09 (s, 1H), 2.96 (m, 4H), 2.18 (m, 1H), 2.05 (m, 1H).
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Other Reference
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- Stereocontrol with Lithium Trimethylzincate toward Gibberellin Synthesis
参考文献