## Abstract Using ultra‐violet absorption spectroscopy below 210 mμ it becomes possible to characterize amide chromophores. The present short communication shows that open chain amides and ureas absorb at shorter wave‐lengths than the corresponding cyclic representatives, and that UV. absorption me
✦ LIBER ✦
Tautomerieverhältnisse bei Hydroxyacyl-cyclopeptiden. 2. Mitteilung über chemische Struktur und UV.-Spektroskopie
✍ Scribed by K. Stich; H. G. Leemam
- Publisher
- John Wiley and Sons
- Year
- 1963
- Tongue
- German
- Weight
- 341 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The present paper shows that it is possible to elucidate the tautomerism in the case of hydroxyacyl‐cyclopeptides (open forms‐cyclols‐large rings) with the aid of absorption measurements in the far ultra‐violet spectral range.
📜 SIMILAR VOLUMES
Über die UV.-Absorption acylierter Amide
✍
H. G. Leemann; K. Stich; J. Gmünder; A. Lindenmann
📂
Article
📅
1963
🏛
John Wiley and Sons
🌐
German
⚖ 175 KB
👁 1 views
Kinetische Studie zur Aminolyse von «akt
✍
K. Stich; H. G. Leemann
📂
Article
📅
1963
🏛
John Wiley and Sons
🌐
German
⚖ 494 KB
👁 1 views
## Abstract By means of spectrophotometric measurements the order of reaction in the aminolysis of «active esters» has been determined. In order to compare the reaction velocities of various «active esters», test conditions have been chosen so that «pseudo‐first order» reactions occur; this allows