Furoin or 1,2-di(furan-2-yl)-2-hydroxyethanone is an organic compound with formula C10H8O4. It can be produced from furfural by a benzoin condensation reaction catalyzed by cyanide ions.[1]
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IUPAC name
1,2-bis(2-furyl)-2-hydroxy-ethanone
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ECHA InfoCard | 100.008.205 |
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C10H8O4 | |
Molar mass | 192.170 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Furoin synthesis from furfural is also catalyzed by vitamin B1 (thiamine). In 1957, Ronald Breslow proposed that this reaction involves a relatively stable carbene form of thiamine.[2][3] In the catalytic cycle shown below two molecules of furfural react to give furoin, via a thiazol-2-ylidene catalyst, resulting from loss of one proton at carbon 2 of the thiazolium cation of vitamin B1:
This was the first evidence for the existence of persistent carbenes.
Furoin has been used as a plasticizer.[1]