Method for the production of aliphatic alcohols and/or their ethers, in particular, 1-octanol

摘要

A method for the production of aliphatic alcohols and/or their ethers, comprising the step of reacting a substrate of the general formula (I): in which m is 0, 1, 2, 3, 4, 5, 6, 7, 8 or 9 and n is 1 or 2; R1 is hydrogen, a linear, branched or cyclic alkyl rest, a primary alkanol rest, an aryl rest or one of the following radicals: and R2 is hydrogen or —CH2OH; with hydrogen in the presence of a hydrogenation catalyst system, wherein the hydrogenation catalyst system comprises: a hydrogenation catalyst comprising Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt; and an acidic additive selected from the group of organoperfluorocarboxylic acids, hydrochloric acid, formic acid, acetic acid, phosphoric acid, sulfuric acid, sulfonic acid and/or organic compounds comprising sulfonic acid groups, phosphoric acid groups and/or phosphonic acid groups; with the proviso that the acidic additive is a liquid and/or at least partially dissolved in the substrate (I) during the reaction of (I) with hydrogen in the case that R2 is CH2OH.;

主权项

1. A method for the hydrogenolysis of cyclic ethers, comprising the step of reacting a substrate of the general formula (I): in which m is 2, 3, 4, 5, 6, 7, 8 or 9 and n is 1 or 2; R1 is hydrogen, a linear, branched or cyclic alkyl rest, a primary alkanol rest, an aryl rest or one of the following radicals: and R2 is hydrogen or —CH2OH; with hydrogen in the presence of a hydrogenation catalyst system, wherein the hydrogenation catalyst system comprises:
a hydrogenation catalyst comprising Ru; andan acidic additive selected from the group of acidic ionic liquids comprising sulfonic acid groups, phosphoric acid groups and/or phosphonic acid groups;with the proviso that the acidic additive is a liquid and/or at least partially dissolved in the substrate (I) during the reaction of (I) with hydrogen in the case that R2 is CH2OH;and wherein ruthenium nanoparticles stabilized by 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) acetate, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) bromide, (1-butyl-3-methylimidazolium tetrafluoroborate and/or (1-dodecyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide) are excluded as a catalyst;and wherein the hydrogenation is performed at a temperature of ≧140° C. to ≦180° C.