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CAS RN: 110-87-2 | Product Number: D0555
3,4-Dihydro-2H-pyran
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Purity: >97.0%(GC)
Synonyms:
- DHP
Product Documents:
| Size | Unit Price | Shanghai | Tianjin | Japan* |
|---|---|---|---|---|
| 25ML |
¥105.00
|
12 | Contact Us | 32 |
| 100ML |
¥200.00
|
≥40 | Contact Us | 11 |
| 500ML |
¥290.00
|
≥40 | Contact Us | ≥100 |
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| Product Number | D0555 |
| Purity / Analysis Method | >97.0%(GC) |
| Molecular Formula / Molecular Weight | C__5H__8O = 84.12 |
| Physical State (20 deg.C) | Liquid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 110-87-2 |
| Reaxys Registry Number | 103493 |
| PubChem Substance ID | 87567211 |
| SDBS (AIST Spectral DB) | 2119 |
| MDL Number | MFCD00006558 |
Specifications
| Appearance | Colorless to Light yellow clear liquid |
| Purity(GC) | min. 97.0 % |
Properties (reference)
| Boiling Point | 86 °C |
| Flash point | -6 °C |
| Specific Gravity (20/20) | 0.93 |
| Refractive Index | 1.44 |
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H315 : Causes skin irritation. H319 : Causes serious eye irritation. H225 : Highly flammable liquid and vapor. |
| Precautionary Statements | 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. |
Related Laws:
Transport Information:
| UN Number | UN2376 |
| Class | 3 |
| Packing Group | II |
| Customs Control Conditions (Q) |
Application
THP Protection of Alcohols
Typical Procedure :THP protection of (R)-(+)-glycidol
(R = (R)-(+)-glycidyl) : Pyridinium p-toluenesulfonate (PPTS) (1.00 g, 4.05 mmol) and 3,4-dihydro-2H-pyran (11.3 mL, 121.5 mmol) are added to a stirred solution of (R)-(+)-glycidol (6.00 g, 80.99 mmol) in dichloromethane (80 mL) at 0 °C under argon atmosphere. After 6 h, aqueous NaHCO3 solution (60 mL) is added and the layers are separated. The aqueous layer is extracted with dichloromethane (3x50 mL). Combined organic layer is dried over MgSO4, filtered, and concentrated in vacuo. The crude mixture is purified by column chromatography (EtOAc:hexane = 1:5) to give the desired product (9.22 g, 72%).
(R = (R)-(+)-glycidyl) : Pyridinium p-toluenesulfonate (PPTS) (1.00 g, 4.05 mmol) and 3,4-dihydro-2H-pyran (11.3 mL, 121.5 mmol) are added to a stirred solution of (R)-(+)-glycidol (6.00 g, 80.99 mmol) in dichloromethane (80 mL) at 0 °C under argon atmosphere. After 6 h, aqueous NaHCO3 solution (60 mL) is added and the layers are separated. The aqueous layer is extracted with dichloromethane (3x50 mL). Combined organic layer is dried over MgSO4, filtered, and concentrated in vacuo. The crude mixture is purified by column chromatography (EtOAc:hexane = 1:5) to give the desired product (9.22 g, 72%).
References
- A Facile Synthesis of (S)-Felodipine
PubMed Literature
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