Dichloromethyl methyl ether

Dichloromethyl methyl ether (HCl₂COCH₃) is an organic compound that belongs to the class of ethers with a dichloromethyl group and a methyl group. It can be synthesized from methyl formate and a mixture of phosphorus pentachloride and phosphorus oxychloride^[1] or by chlorination of chlorodimethyl ether.

Dichloromethyl methyl ether

Names
Preferred IUPAC name Dichloro(methoxy)methane
Identifiers
CAS Number	4885-02-3
3D model (JSmol)	Interactive image
ChemSpider	19757
ECHA InfoCard	100.023.180
PubChem CID	21004
CompTox Dashboard (EPA)	DTXSID2063636
InChI InChI=1S/C2H4Cl2O/c1-5-2(3)4/h2H,1H3
SMILES ClC(Cl)OC
Properties
Chemical formula	C2H4Cl2O
Molar mass	114.95 g·mol−1
Boiling point	85°C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

The compound is used in the formylation of aromatic compounds (Rieche formylation) and as a chlorination agent in the formation of acid chlorides.^[2]