Preparation of caprolactone, caprolactam, 2,5-tetrahydrofuran dimethanol, 1,6-hexanediol or 1,2,6-hexanetriol from 5-hydroxymethyl-2-furfuraldehyde
申请人:Netherlands Organisation for Scientific Research
(Advanced Chemical Technologies
for Sustainability)
公开号:EP2390247A1
公开(公告)日:2011-11-30
The present invention relates to a method for preparing caprolactone, comprising converting 5-hydroxymethyl-2-furfuraldehyde by hydrogenation into at least one intermediate compound selected from the group of 2,5-tetrahydrofuran dimethanol, 1,6-hexanediol and 1,2,6-hexanetriol,and preparing caprolactone from said intermediate compound.
Further, the invention relates to a method for preparing 1,2,6 hexanetriol comprising preparing 5-hydroxymethyl-2-furfaldehyde from a renewable source, converting 5-hydroxymethyl-2-furfaldehyde into 2,5-tetrahydrofuran dimethanol and converting 2,5-tetrahydrofuran dimethanol into 1,2,6 hexanetriol.
Further, the invention relates to a method for preparing 1,6 hexanediol from 1,2,6-hexanetriol, wherein 1,2,6-hexanetriol is subjected to a ring closure reaction, thereby forming 2-hydropyranyl-methanol, and the 2-hydropyranyl-methanol is hydrogenated, thereby forming 1,6 hexane diol.
本发明涉及一种制备己内酯的方法,包括将5-羟甲基-2-呋喃醛经过加氢转化为选自2,5-四氢呋喃二甲醇、1,6-己二醇和1,2,6-己三醇中至少一种中间化合物,然后从该中间化合物制备己内酯。此外,该发明还涉及一种制备1,2,6-己三醇的方法,包括从可再生来源制备5-羟甲基-2-呋喃醛,将5-羟甲基-2-呋喃醛转化为2,5-四氢呋喃二甲醇,再将2,5-四氢呋喃二甲醇转化为1,2,6-己三醇。此外,该发明还涉及一种从1,2,6-己三醇制备1,6-己二醇的方法,其中将1,2,6-己三醇进行环闭合反应,从而形成2-羟基吡喃基甲醇,然后对2-羟基吡喃基甲醇进行加氢,形成1,6-己二醇。