A sustainable synthetic route for biobased 6-hydroxyhexanoic acid, adipic acid and ε-caprolactone by integrating bio- and chemical catalysis

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Abstract
A green route for the production of 6-carbon polymer building blocks 6-hydroxyhexanoic acid, adipic acid and ε-caprolactone from 1,6-hexanediol, a hydrogenation product of biobased 5-hydroxymethylfurfural is reported. Gluconobacter oxydans oxidized 1,6-hexanediol completely to adipic acid, and selectively at pH 6–7 to 6-hydroxyhexanoic acid, which was converted to ε-caprolactone by catalytic cyclization.
Funding Information
  • Stiftelsen för Miljöstrategisk Forskning (2016/1489)
  • Vetenskapsrådet (2013-6017)

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