Blair and Roberts 1 have published evidence ia faveur l f the cyclic structure (II) fer the sugar l sazones, rather than the
The structure of sugar osazones
โ Scribed by L. Mester; E. Moczar; J. Parello
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- French
- Weight
- 325 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
The structure of sugar osazones and related compounds wa: long time controversial. Fieser and Fieser (1) on theoretical grounds propose1 two alternate chelate structures i and j , these being stabilized by their ability to exist in the resonance forms i' and j'.
๐ SIMILAR VOLUMES
The interpretation of the mutarotation of sugar osaeones was for long controversial (l-5). Discarding all earlier views. in 1957, Mester
Sugar osazones (1,2) and their acetates have circular dichroism spectra with multiple Cotton effects, showing three typical bands. Band I is located between 340 and 420 nm, with a negative Cotton effect, when the C-3 hydroxyl is to the e in the Fischerformula. Band II is located between 240 and 340
## Dedicated to Professor Fritz Micheel on the occasion of his 65th birthday The open-chain chelate structure of sugar osazones, first proposed by Fieser and Fieser, has now been confirmed by chemical methods, X-ray analysis, and NMR spectroscopy. These investigations showed that the properties of