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CAS No. : | 50-69-1 | MDL No. : | |
Formula : | C5H10O5 | Boiling Point : | - |
Linear Structure Formula : | HOCH2CH(OH)CH(OH)CH(OH)CHO | InChI Key : | PYMYPHUHKUWMLA-LMVFSUKVSA-N |
M.W : | 150.13 | Pubchem ID : | 5311110 |
Synonyms : |
|
Chemical Name : | (2R,3R,4R)-2,3,4,5-Tetrahydroxypentanal |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With trifluoroacetic acid; In water; at 120℃; for 4h; | Compound 1 (about 4 mg) was added into a solution of water (1 mL) and 2N aqueous CF3COOH(2 mL), heated to 120°C under reflux conditions for 4 h. The mixture was diluted with water (2 mL) and then extracted with EtOAc (3 £2 mL). The combined organic phase was washed with brine and evaporated to dryness to afford the aglycones. The aqueous phase was concentrated. Then dry pyridine (1 mL) and L-cysteine methyl ester hydrochloride (2 mg) were added into the residue. Each mixture was reacted at 60°C for 1 h, and 0.5mL of (trimethylsilyl) imidazole dissolved in H2O was added, followed by heating to dryness at 60°C for 2 h. Each dried reactant was extracted with n-hexane (3 £ 1 mL) and H2O (1 mL, each). The n-hexane fraction was subjected to GC (column: Rtx-1, 0.25mm i.d. 0.25 mm, length 30 m). The conditions of GC were flame ionization detector; column temperature 100?180°C (10°C min?1)and 180?230°C (3°C min21); injector temperature 250°C; detector temperature 300°C and the carrier gas (N2, 0.8mLmin21). Under these conditions, these sugars of each reactants were identified by comparison with authentic samples: tR (min) 7.56 (D-ribose), 7.85 (L-ribose), 10.49 (D-glucose) and 11.10 (L-glucose). |
A1452055[ 139657-62-8 ]
(2R,3R,4R)-2,3,4,5-Tetrahydroxypentanal-5-13C
Reason: Stable Isotope