Identification | Back Directory | [Name]
2-METHOXYTETRAHYDROPYRAN | [CAS]
6581-66-4 | [Synonyms]
2-methoxyoxane 2-METHOXYTETRAHYDROPYRAN 2-Methoxytetrahydropyrane 2-methoxy-tetrahydro-pyra Pyran,tetrahydro-2-methoxy- tetrahydro-2-methoxy-2h-pyra 2-Methoxytetrahydro-2H-pyran tetrahydro-2-methoxy-2h-pyran 2H-Pyran,tetrahydro-2-methoxy- (R,S)-2-Methoxy-tetrahydro-pyran 2-METHOXYTETRAHYDROPYRAN ISO 9001:2015 REACH | [EINECS(EC#)]
229-509-8 | [Molecular Formula]
C6H12O2 | [MDL Number]
MFCD00075264 | [MOL File]
6581-66-4.mol | [Molecular Weight]
116.16 |
Chemical Properties | Back Directory | [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 |
Safety Data | Back Directory | [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 |
Questions And Answer(Q&A) | Back Directory | [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).
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