Bp Corporation North America Inc.

Erin Imsand

Joseph B Binder

Lu Yang

Liang Song

Christopher Phillips

A method is provided of preparing a compound of formula II: where: Rand Rare independently selected from —CHOR', —CHO, —COOR′ and —H, the compounds of formulas I and II being optionally in the form of a salt. The method comprises dehydrating the compound of formula I at: a pH in the range of from 0 to 6 or 8 to 11.5; and a temperature in the range of from 10 to 80° C. The method is particularly useful for synthesizing substituted furans from compounds derived from sugars.

Synthesis of substituted furans

A method is provided of preparing a compound of formula II: where: Rand Rare independently selected from &#x2014;CH2OR', &#x2014;CHO, &#x2014;COOR&#x2032; and &#x2014;H, provided that Rand Rare not both &#x2014;H; and R&#x2032; is selected from &#x2014;H and Chydrocarbyl groups, from a compound of formula I: the compounds of formulas I and II being optionally in the form of a salt. The method comprises dehydrating the compound of formula I at: a pH in the range of from 0 to 6 or 8 to 11.5; and a temperature in the range of from 10 to 80&#xb0; C. The method is particularly useful for synthesizing substituted furans from compounds derived from sugars. 

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San Diego, CA, United States of America

Erin Imsand