## Abstract Selective incorporation of deuterium by platinum‐catalyzed exchange for six ribonucleosides and two 2′‐deoxyribonucleosides has been studied as a function of catalyst/substrate ratio, temperature, time and concentration. In addition to exchange of carbon‐bound hydrogens in purines, pyri
Preparation of deuterium-labeled rutin by hydrogen exchange reaction
✍ Scribed by K. Hiraoka; T. Miyamoto; S. Baba; T. Furuta
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- French
- Weight
- 258 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Preparation of deuterium‐labeled rutin by hydrogen exchange reaction under alkaline condition is described. Hydrogens at positions 2′, 5′ and 6′ of rutin were replaced with deuteriums only on heating, while hydrogens at positions 6 and 8 were readily replaced at room temperature. On the basis of these findings rutin‐2′, 5′, 6′, 6, 8‐d~5~ was first prepared and then treated with alkaline water at room temperature to obtain rutin labeled with deuteriums at positions 2′, 5′ and 6′.
📜 SIMILAR VOLUMES
## Abstract Multi‐deuterium incorporations into drugs, such as theophylline, caffeine, valpromide, phenytoin, and trimethoprim, were post‐synthetically achieved by Pd/C‐, Pt/C‐, or/and Rh/C‐catalyzed hydrogen–deuterium exchange reactions under neutral conditions using deuterium oxide as the deuteri
h i g h i s o t o p i c p u r i t y u s i n g a c i d c a t a l y z e d hydrogen-deuterium exchange r e a c t i o n i s described. Deuterated imipramine l a b e l e d a t t h e p o s i t i o r s o f 2.4.6 and 8 [IP-d4(I)] was prepared d i r e c t l y by h e a t i n g imipramine i n 10% DC1-D20 a t 8
## Abstract A simple, efficient protocol for the preparation of α‐labeled aldehydes based on H/D exchange catalyzed by 4‐(__N,N__‐dimethylamino)pyridine or Et~3~N is described. High chemical yields and ratios of isotope incorporation were obtained even when small amounts (∼1 mmol) of aldehyde were
## Abstract The measurement of deuterium incorporation kinetics using hydrogen/deuterium (H/D) exchange experiments is a valuable tool for the investigation of the conformational dynamics of biomolecules in solution. Experiments consist of two parts when using H/D exchange mass spectrometry to anal