A New Approach towards the Asymmetric Fluorination of Alkenes Using Anionic Phase-Transfer Catalysts.
Summary of "A New Approach towards the Asymmetric Fluorination of Alkenes Using Anionic Phase-Transfer Catalysts."
Chiral anions can do it: Asymmetric phase-transfer catalysis is no longer limited to cationic catalysts. Lipophilic BINOL phosphate anions are superior catalysts for the asymmetric electrophilic fluorination of alkenes under phase-transfer conditions. Now complex fluorinated compounds can be synthesized selectively from simple alkene starting materials.
Affiliation
Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Deutschland). ulrich.hennecke@uni-muenster.de.
Journal Details
This article was published in the following journal.
Name: Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Pages: 4532-4
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22461088
- DOI: http://dx.doi.org/10.1002/anie.201200831
Medical and Biotech [MESH] Definitions
Interphase
The interval between two successive CELL DIVISIONS during which the CHROMOSOMES are not individually distinguishable. It is composed of the G phases (G1 PHASE; G0 PHASE; G2 PHASE) and S PHASE (when DNA replication occurs).
Metabolic Detoxication, Phase I
Functionalization of exogenous substances to prepare them for conjugation in PHASE II DETOXIFICATION. Phase I enzymes include CYTOCHROME P450 enzymes and some OXIDOREDUCTASES. Excess induction of phase I over phase II detoxification leads to higher levels of FREE RADICALS that can induce CANCER and other cell damage. Induction or antagonism of phase I detoxication is the basis of a number of DRUG INTERACTIONS.
G2 Phase
The period of the CELL CYCLE following DNA synthesis (S PHASE) and preceding M PHASE (cell division phase). The CHROMOSOMES are tetraploid in this point.
Cell Cycle
The complex series of phenomena, occurring between the end of one CELL DIVISION and the end of the next, by which cellular material is duplicated and then divided between two daughter cells. The cell cycle includes INTERPHASE, which includes G0 PHASE; G1 PHASE; S PHASE; and G2 PHASE, and CELL DIVISION PHASE.
Alkenes
Unsaturated hydrocarbons of the type Cn-H2n, indicated by the suffix -ene. (Grant & Hackh's Chemical Dictionary, 5th ed, p408)
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