Synthesis of glycols via transfer hydrogenation of alpha-functional esters with alcohols
申请人:Eastman Chemical Company
公开号:US10266467B2
公开(公告)日:2019-04-23
A transfer hydrogenation process for forming vicinal diols by hydrogenating 1,2-dioxygenated organic compounds using alcohols as the reducing agent instead of the traditional H2 gas. The transfer hydrogenation is carried out under milder conditions of temperature and pressure than is typical for ester hydrogenation with H2. The milder conditions of operation provide benefits, such as lower operating and capital costs for industrial scale production as well as savings in product purification due to the avoidance of by-products from exposure of reaction mixtures and products to high temperatures.
利用醇类作为还原剂而不是传统的 H2 气体,通过氢化 1,2-二氧 化有机化合物形成沧烷二醇的转移氢化工艺。与使用 H2 进行酯加氢的典型方法相比,转移加氢是在较温和的温度和压力条件下进行的。较温和的操作条件带来了诸多好处,例如降低了工业规模生产的操作和资本成本,以及由于避免了反应混合物和产品暴露于高温而产生的副产品,从而节省了产品提纯费用。