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| | 2-METHOXYTETRAHYDROPYRAN Basic information |
| | 2-METHOXYTETRAHYDROPYRAN Chemical Properties |
| Boiling point | 128-129 °C (lit.) | | density | 0.963 g/mL at 25 °C (lit.) | | refractive index | n20/D 1.425(lit.) | | Fp | 77 °F | | Specific Gravity | 0.963 |
| Hazard Codes | F | | Risk Statements | 10 | | Safety Statements | 16-29-33 | | RIDADR | UN 1993 3/PG 3 | | WGK Germany | 2 | | RTECS | UQ0300000 | | HazardClass | 3.2 | | PackingGroup | III |
| | 2-METHOXYTETRAHYDROPYRAN Usage And Synthesis |
| Preparation | To a flask equipped with a stirrer and containing 84.0 gm (1.0 mole) of 2,3-dihydropyran in the presence of 1 ml of cone, hydrochloric acid is added 32.0 gm (1.0 mole) of methanol. The reaction is exothermic and is stirred for 3 hr. Then a few pellets of sodium hydroxide are added to make the reaction basic. The mixture is directly distilled to afford 98.6 gm (85%), b.p. 125°C (760 mm Hg).
| | General Description | 2-Methoxytetrahydropyran is methoxy-substituted tetrahydropyran. α- and β-glycosidic C1-O1 bonds of the axial and equatorial forms of 2-methoxytetrahydropyran has been investigated by ab initio conformational study. Stereochemical properties of the glycosidic linkage of 2-methoxytetrahydropyran have been studied by the quantum-chemical PCILO method. It undergoes elimination reaction in the gas phase to yield 3, 4-dihydro-2H-pyran and methanol. Proton resonance spectra of 2-methoxytetrahydropyran has been analyzed. |
| | 2-METHOXYTETRAHYDROPYRAN Preparation Products And Raw materials |
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