The kinetics of the isotope exchange reactions of RCH(COOH) 2 (R"H, D, Me, Et, Bu, and Ph) in D 2 O solution were studied by using 1 H NMR spectroscopy. It was observed that the rate of isotope exchange reaction was inhibited by the presence of 1 M of DNO 3 , DCl, DBr or D 2 SO 4 and catalyzed by th
Comparative Study of the Phospha- and Arsa-Wittig Reaction Using 1H, 75As and 17O NMR Spectroscopy
β Scribed by Christian Raeck; Stefan Berger
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 104 KB
- Volume
- 2006
- Category
- Article
- ISSN
- 1434-193X
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract To prevent the precipitation reaction between glycyrrhizin (**1**) and berberine (**3**) in the decoctions of __Glycyrrhiza__/__Coptis__ rhizome or __Glycyrrhiza__/__Phellodendron__ bark, the presence of cyclodextrin (CD) in the mixture was proven to be effective. The preventing effect
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v