Preparation of caprolactone, caprolactam, 2,5-etrahydrofuran-<wbr/>dimethanol, 1,6-<wbr/>hexanediol or 1,2,6-<wbr/>hexanetriol from 5-<wbr/>hydroxymethyl-<wbr/>2-furfuraldehyde
A technology of tetrahydrofuran and hexanediol, applied in the field of preparing ε-caprolactam, can solve the problems of hindering microbial intermediates, laborious and the like
Active Publication Date: 2013-07-31
NEDERLANDSE ORG VOOR WETENSCHAPPELIJK ONDERZOEK NWO
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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.
Application Domain
Lactams preparationPreparation by oxygen reduction
Technology Topic
MethanolDiol +9
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