申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0343841A2
公开(公告)日:1989-11-29
Process for preparing 2-alkyl-1,4-butanediols and mixtures with 1,4-butanediol which comprises bringing together, at an initial alkaline pH, and at a temperature and pressure suitable for reaction, 2,3-dihydrofuran, hydrogen, an unsubstituted aliphatic aldehyde, especially formaldehyde, and a hydrogenation catalyst. Also processes for preparing mixtures of tetrahydrofuran and 3-alkyltetrahydrofuran from the diol mixtures, and copolymers from the tetrahydrofuran mixtures.
制备 2-烷基-1,4-丁二醇及与 1,4-丁二醇的混合物的工艺,包括在初始碱性 pH 值和适于反应的温度和压力下,将 2,3-二氢呋喃、氢气、未取代的脂肪族醛(尤其是甲醛)和氢化催化剂混合在一起。此外还有从二元醇混合物中制备四氢呋喃和 3-烷基四氢呋喃混合物的工艺,以及从四氢呋喃混合物中制备共聚物的工艺。