## ABSTRAa Careful hydrolysis of (+ kis-or (+ )-trans-tetrahydro-2,5-dimethoxy-2-furaldehyde dimethyl acetal proceeded via 5,5-dimethoxy-4-oxopentanal to give (+ )-tram-4-hydroxy-5-methoxy-2-cyclopentenone and ( f )-rrans-4,5-dihydroxy-2qclopentenone. The latter product did not isomerize to 2,3-d
On the formation of 2,3-dihydroxyacetophenone from pentoses or hexuronic acids
β Scribed by Tania Ahmad; Rolf Andersson; Kjell Olsson; Olof Theander
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 229 KB
- Volume
- 247
- Category
- Article
- ISSN
- 0008-6215
No coin nor oath required. For personal study only.
β¦ Synopsis
The structure of a previously isolated intermediate in the title reaction has been revised to 3-acetyl-2,3,4-trihydroxycyclohexanone by high-field 'H NMR spectroscopy. The three hydroxyl groups are mutually c&related. * Corresponding author. + All chiral compounds were obtained as racemic mixtures, but only one enantiomer is shown.
π SIMILAR VOLUMES
## Abstract The mechanism of the formation of 1βmethylβ3__H__,9__H__βpyrano[3,4β__b__]indolβ3βone (4) from the corresponding 3βindolacetic acid 1 is discussed. The suggested mechanism is substantiated by the isolation of a stable intermediate 2 and its transformations in the presence of acetic anhy