Abstract
Rhenium carbonyl, when combined with a halide or acetate salt, was found to exhibit catalytic activity for the direct formation of ethylene glycol from carbon monoxide and hydrogen in N-methylpyrrolidinone solvent under high pressure and temperature. LiCl was found to be the most effective salt. This is the first case in which a non-Group VIII element is reported to catalyze the reaction. IR spectroscopic studies revealed that the halides interact with rhenium in such a manner to increase the electron density of the central metal atom. Nickel was effective as a cocatalyst in promoting the ethylene glycol formation.
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