| 摘要 |
Organic compounds containing one or more olefinic or acetylenic bonds are hydrogenated by contact with molecular hydrogen in a liquid phase comprising a solution of a rhodium complex comprising (a) rhodium, (b) an anionic element or group, and (c) a compound of formula YR1R11R111, where Y is arsenic, antimon or phosphorus and the R's are the same or different hydrocarbon or substituted hydrocarbon groups or heterocyclic groups, the molar ratio of (a) : (b) : (c) being in the range 1:1:1 to 1:1:4. The rhodium complex may be of the type [RhX(YR1R11R111)2]n or RhH2X(YR1R11R111)3, or may be formed in situ from (RhXZ2)n and YR1R11R111, where X in each case is the anionic element or group, and Z is a mono- or di-olefin. X may be cyanide, cyanate, carboxylate, SnCl3- or halogen, preferably chlorine. An inert solvent may be present. Compounds containing acetylenic bonds may be partially or completely hydrogenated as desired by controlling the hydrogen uptake. Compounds which may be hydrogenated include butadiene, octene-1, octene-2, diisobutene, cyclohexene, vinyl cyclohexene, styrene and phenyl acetylene (giving styrene or ethyl benzene as desired).ALSO:Organic compounds containing one or more olefinic or acetylenic bonds are hydrogenated by contact with molecular hydrogen in a liquid phase comprising a solution of a rhodium complex comprising (a) rhodium, (b) an anionic element or group, and (c) a compound of formula YR1R11R111, where Y is arsenic, antimony or phosphorus and the R's are the same or different hydrocarbon or substituted hydrocarbon groups or heterocyclic groups, the molar ratio of (a): (b): (c) being in the range 1:1:1 to 1:1:4. The rhodium complex may be of the type [RhX(YR1R11R111)2]n o RhH2X(YR1R11R111)3, or may be formed in situ from (RhXZ2)n and YR1R11R111, where in each case is the anionic element or group, and Z is a mono- or di-olefin. X may be cyanide, cyanate, carboxylate, SnCl3- or halogen, preferably chlorine. An inert solvent may be present. Compounds containing acetylenic bonds may be partially or completely hydrogenated as desired by controlling the hydrogen uptake. Compounds which may be hydrogenated include acrylonitrile and bicyclo[3,3,1]non-2-ene-9-one. |
