Table 3 Yields of recovered 5-HMF derived from wood (0.09 g; moisture content 4.8%) by vacuum distillation with [MIM]HSO4 (3 g) at 2.5 kPa.

From: Production of 5-hydroxymethylfurfural from Japanese cedar (Cryptomeria japonica) in an ionic liquid, 1-methylimidazolium hydrogen sulfate

Reaction temperature (°C)

Reaction time (min)

Yield (wt%)

In trap

In [MIM]HSO4

140

240

0.1

5.6

160

30

0.1

6.2

180

15

0.1

1.2

200

15

0.3

0.5

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