Anhydrosugar synthesis
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United States of America Patent
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Jul 30, 2019
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app pub date -
Dec 15, 2016
filing date -
Dec 15, 2016
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Abstract
Improved methods of making anhydrosugars by pyrolysis of a substrate sugar to remove at least one water molecule thereby producing a desired anhydrosugar and side products, the improvement being either 1) protecting one hydroxyl group of the substrate sugar before pyrolysis; or (2) pretreating the substrate sugar with a metal salt and optional acid before pyrolysis, wherein lower amounts of said side products are produced by said improved method.
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