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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 426970Generated: October 26, 2026

(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal → Demannose

https://huagongshe.com/reaction/426970

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanalHCID 107526—
Reactantaldehydo-D-XyloseHCID 644160—
ProductDemannoseHCID 161658—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 5.7 g (38.4 mmole) of D-xylose of mp. 153° C. and 6.9 g (38.4 mmole) of D-glucose of mp. 143° C. is heated to approximately 80° C. with 52.7 g (176.8 mmole) of BEPDIB. The readily volatile constituents are then removed in vacuo (10-3Torr). Subsequent distillation gives 7.3 g of bp. 78° C./10-3Torr in addition to 11 g of yellowish residue.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04172195
Source datasetuspto-grants-1979_10
ORD IDord-a57f12c0dd8146639e6a128631e27211
Source noteuspto-grants-1979_10