Abstract
Gas chromatography has been used to investigate the products accompanying tetrahydrofuran prepared by hydrogenation of furan, without isolating the latter pure from the gas mixture obtained by decarbonylating furfural over oxide catalysts. A number of unknown impurities accompanying tetrahydrofuran and furan, are identified. It is found that tetrahydrofuran contains isopropanol, along with furan,α-methylfuran, andα-methyltetrahydrofuran. Furan itself containsα-methylfuran, and a number of unknown impurities, among them acetone. Ethane is found among the gaseous products of decarbonylation. Thus over Zn and Mn oxide catalysts there is joint hydrogenolysis of the furan ring, and ring opening at positions 1–5 and 3–4.
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Moshkin, P.A., Preobrazhenskaya, E.A., Berezina, B.B. et al. Decarbonylation of furfural over oxide catalysts. Chem Heterocycl Compd 2, 1–4 (1966). https://doi.org/10.1007/BF00955584
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DOI: https://doi.org/10.1007/BF00955584