2-Methoxypropene

2-Methoxypropene is an ether with the chemical formula C₄H₈O. It is a reagent used in organic synthesis to introduce a protecting group for alcohols,^[1] and the conversion diols to the acetonide group.^[3]

2-Methoxypropene

Names
Preferred IUPAC name 2-Methoxyprop-1-ene
Other names Methyl isopropenyl ether Isopropenyl methyl ether
Identifiers
CAS Number	116-11-0 Y
3D model (JSmol)	Interactive image
ChemSpider	7999
ECHA InfoCard	100.003.751
PubChem CID	8300
UNII	15WBG0JT6B Y
CompTox Dashboard (EPA)	DTXSID3051591
InChI InChI=1S/C4H8O/c1-4(2)5-3/h1H2,2-3H3 Key: YOWQWFMSQCOSBA-UHFFFAOYSA-N InChI=1/C4H8O/c1-4(2)5-3/h1H2,2-3H3 Key: YOWQWFMSQCOSBA-UHFFFAOYAD
SMILES CC(=C)OC
Properties
Chemical formula	C4H8O
Molar mass	72.107 g·mol−1
Appearance	Colorless liquid[1]
Density	0.753 g/mL[2]
Boiling point	34 to 36 °C (93 to 97 °F; 307 to 309 K)[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2-Methoxypropene can be prepared by the elimination of methanol from dimethoxypropane,^[4] or by the addition of methanol to propyne or allene.^[5]