Vapor-phase carbonylation of dimethoxymethane over H-Faujasite.
Carbonylation gets a phase lift: The usual liquid-phase, high-pressure processes for carbonylating formaldehydes are avoided in a novel vapor-phase reaction. Using an acid zeolite (Faujasite) at near-atmospheric pressure dimethoxymethane (DMM; the dimethyl acetal of formaldehyde; see scheme) is carbonylated to produce methyl methoxyacetate (MMAc). This approach provides a new route to ethylene glycol under mild conditions.
Celik
Fuat E
FE
Chemical Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.
Kim
Tae-Jin
TJ
Bell
Alexis T
AT