Product Details
3,4-Dihydro-2H-pyran CAS# 110-87-2 serves as a widely applied hydroxyl-protecting agent in organic synthesis. It functions as a key intermediate for synthetic chemistry and is used to shield diverse reactive functional groups. It can participate in polymerization reactions either alone or together with unsaturated compounds, maleic-anhydride.html">making it useful in the polymer industry. Additionally, it is applied in preparing epoxide-fused bicyclic compounds, halogenated compounds, and allenic alcohols.
Parameters
| Melting point | -70 °C (lit.) |
| Boiling point | 86 °C (lit.) |
| density | 0.922 g/mL at 25 °C (lit.) |
| vapor density | 2.9 (vs air) |
| vapor pressure | 77.8 hPa (20 °C) |
| refractive index | n20/D 1.440(lit.) |
| Fp | 4 °F |
| storage temp. | Store below +30°C. |
| solubility | 7.7g/l |
| form | Liquid |
| color | Clear colorless to yellow |
| PH | 7 (5g/l, H2O, 20℃) |
| explosive limit | 1.1-13.8%(V) |
| Water Solubility | 20 g/L (20 ºC) |
| BRN | 103493 |
| Stability: | Volatile |
| InChIKey | BUDQDWGNQVEFAC-UHFFFAOYSA-N |
| LogP | 0.690 |
| CAS DataBase Reference | 110-87-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2H-Pyran, 3,4-dihydro-(110-87-2) |
| EPA Substance Registry System | 2H-Pyran, 3,4-dihydro- (110-87-2) |
Safety Information
| Hazard Codes | F,Xi |
| Risk Statements | 11-36/37/38-36/38-19 |
| Safety Statements | 16-26-36-37/39-33-7/9 |
| RIDADR | UN 2376 3/PG 2 |
| WGK Germany | 3 |
| RTECS | UP7700000 |
| Autoignition Temperature | 240 °C |
| Hazard Note | Highly Flammable/Irritant |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29329995 |
| Toxicity | LD50 orally in Rabbit: > 4000 mg/kg |
Product Application of 3,4-Dihydro-2H-pyran CAS# 110-87-2
3,4-Dihydro-2H-pyran can be used as a reactant to synthesize:
- Tetrahydropyranylated product from alcohols in the presence of phenolsulfonic acid-formaldehyde resin catalyst.
- Tetrahydropyran derivatives by reacting pyrazoles in the presence of trifluoroacetic acid.
- 1,2,3,4-Tetrahydroquinoline derivatives by cation-exchange resin catalyzed Domino reaction with aromatic amines.
- Tetrahydroquinolines from aryl azides in the presence of FeCl3-NaI.
Fast delivery time
Inventory 2-3 working days New production 7-10 working days
