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Invention Grant
US09199961B2 Preparation of caprolactone, caprolactam, 2,5-tetrahydrofuran-dimethanol, 1,6-hexanediol or 1,2,6-hexanetriol from 5-hydroxymethyl-2-furfuraldehyde 有权
从5-羟甲基-2-糠醛制备己内酯，己内酰胺，2,5-四氢呋喃 - 二甲醇，1,6-己二醇或1,2,6-己三醇

Preparation of caprolactone, caprolactam, 2,5-tetrahydrofuran-dimethanol, 1,6-hexanediol or 1,2,6-hexanetriol from 5-hydroxymethyl-2-furfuraldehyde
Abstract:
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 (tetrahydro-2H-pyran-2-yl)methanol, and the (tetrahydro-2H-pyran-2-yl)methanol is hydrogenated, thereby forming 1,6-hexane diol.
Abstract(Chinese):

本发明涉及一种制备己内酯的方法，包括通过氢化将5-羟甲基-2-糠醛转化为至少一种选自2,5-四氢呋喃 - 二甲醇，1,6-己二醇和1,2 ，6-己烷三醇，并由所述中间体化合物制备己内酯。 此外，本发明涉及一种制备1,2,6-己三醇的方法，包括从可再生来源制备5-羟甲基-2-糠醛，将5-羟甲基-2-糠醛转化为2,5-四氢呋喃 - 二甲醇并将2 ，5-四氢呋喃 - 二甲醇加入到1,2,6-己三醇中。 此外，本发明涉及从1,2,6-己三醇制备1,6-己二醇的方法，其中1,2,6-己三醇进行闭环反应，从而形成（四氢-2H-吡喃-2-基） - 基）甲醇，并将（四氢-2H-吡喃-2-基）甲醇氢化，从而形成1,6-己二醇。

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