ChemInform Abstract: Determination of Enantiomerization Barriers by Dynamic and Stopped-Flow Chromatographic Methods
โ Scribed by Oliver Trapp; Gabriele Schoetz; Volker Schurig
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 25 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0931-7597
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โฆ Synopsis
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 โFull Textโ option. The original article is trackable via the โReferencesโ option.
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The rotational barriers โฌG โก (T ) of the four atropisomeric polychlorinated biphenyls (PCBs) 2,2ะ,3,5ะ,6-pentachlorobiphenyl (PCB 95), 2,2ะ3,3ะ,4,6ะhexachlorobiphenyl (PCB 132), 2,2ะ,3,3ะ,6,6ะ-hexachlorobiphenyl (PCB 136), and 2,2ะ,3,4ะ,5ะ,6-hexachlorobiphenyl (PCB 149) were determined via on-line e
## Abstract Direct enantiomer separation of hypericin, pseudohypericin, and protohypericin was accomplished by highโperformance liquid chromatography (HPLC) using immobilized polysaccharideโtype chiral stationary phases (CSPs). Enantioselectivities up to 1.30 were obtained in the polarโorganic elut