The
synthesis of dimethoxymethane (DMM) by a multistep reaction of methanol
with carbon dioxide and molecular hydrogen is reported. Using the
molecular catalyst [Ru(triphos)(tmm)] in combination with the Lewis acid
Al(OTf)3 resulted in a versatile catalytic system for the
synthesis of various dialkoxymethane ethers. This new catalytic reaction
provides the first synthetic example for the selective conversion of
carbon dioxide and hydrogen into a formaldehyde oxidation level, thus
opening access to new molecular structures using this important C1 source.
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