2-Methoxypropene

CAS No. 116-11-0

Formula: C4H8O
Basic Info

2-Methoxypropene is an ether with the chemical formula C4H8O. It is a reagent used in organic synthesis as a protecting group for alcohols, and the converstion diols to the acetonide group.
2-Methoxypropene can be prepared by the elimination of methanol from dimethoxypropane, or by the addition of methanol to propyne or allene.

Formula
C4H8O
Molecular Weight
72.1057
Exact Mass
72.0575
LogP
1.1664
PSA
9.23
Synonyms

Isopropenyl Methyl Ether

1-Propene, 2-methoxy-

2-methoxyprop-1-ene

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Properties
Appearance & Physical State
clear colorless liquid
Density
0.753
Boiling Point
34-36ºC
Melting Point
< 25ºC
Flash Point
-29ºC
Refractive Index
1.381-1.384
Water Solubility
negligible
Stability
Stable under normal temperatures and pressures.
Storage Condition
2-8ºC
Vapor Pressure
27.96 psi ( 55 °C)
Safety Info
RTECS
UD0800000
Safety Statements
S16-S18-S33-S9
WGK Germany
1
Risk Statements
R12; R19; R22
HS Code
2909199090
RIDADR
UN 1993
Hazard Class
3
Packing Group
I
Caution Statement
P210
Hazard Codes
Hazard Declaration
Caution Statement
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
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IR Spectrum IR : CCl4 solution
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Mass Spectrum Mass spectrum (electron ionization)
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Raman Spectrum Raman : 4880 A,200 M,liquid
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Analysis Methods
Kovats' RI, non-polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
Squalane
Retention index
482.
Temperature Control
50.
Method
isothermal
Comments
N2, Chromosorb W-AM; Column length: 6. m
Reference
Becerra, M.R.Sánchez, E.F.Domínguez, J.A.G.Muñoz, J.G.Molera, M.J.The use of gaseous and liquid n-paraffins in GC identification of oxidation products of acetondimethyl acetalJ. Chromatogr. Sci.1982, 20, 8, 363-366.
Kovats' RI, non-polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
Squalane
Retention index
483.
Temperature Control
50.
Method
isothermal
Comments
N2, Chromosorb W-AM; Column length: 6. m
Reference
Becerra, M.R.Sánchez, E.F.Domínguez, J.A.G.Muñoz, J.G.Molera, M.J.The use of gaseous and liquid n-paraffins in GC identification of oxidation products of acetondimethyl acetalJ. Chromatogr. Sci.1982, 20, 8, 363-366.

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