| 摘要 |
<p>The invention relates to a method for the production of ethers of formula (I), where R1 and R2 independently = H, substituted or unsubstituted, branched or linear 1 - 20 C alkyl chains, substituted or unsubstituted 5 - 8 C cycloaliphatic groups with a ring size of from 5 - 8 carbon atoms, whereby the ring can be interrupted by a heteroatom, or R1 and/or R2 = unsubstituted or substituted aromatic groups or together form a chain of 5 - 7 methylene groups and R3 = linear or branched 1 - 20 C alkyl chains, by hydrogenation of acetals of formula (II), where R1, R2 and R3 have the meanings given above, in the presence of hydrogen on a catalyst comprising copper oxide, aluminium oxide and optionally, in addition, manganese oxide.</p> |
