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Inside Cover: Dual [Fe+Phosphine] Catalysis: Application in Catalytic Wittig Olefination (ChemCatChem 8/2015)
Author(s) -
Rommel Susanne,
Belger Christian,
Begouin JeanneMarie,
Plietker Bernd
Publication year - 2015
Publication title -
chemcatchem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201590043
Subject(s) - wittig reaction , phosphine , phosphine oxide , chemistry , catalysis , hydride , aldehyde , organic chemistry , hydrogen
The cover picture shows the application of a dual catalytic system in the Wittig reaction. The Wittig reaction is one of the most commonly used olefination reactions in organic chemistry. However, the stoichiometric amounts of phosphine oxides formed within the reaction limit its application to lab‐scale. In their Full Paper, S. Rommel et al. describe a dual catalytic system, consisting of a Fe‐hydride complex and triphenylphosphine. The phosphine forms a Wittig reagent in situ that reacts with a ketone/aldehyde to form the corresponding olefin. The phosphine oxide that is formed is recycled by the Fe‐hydride catalyst by using silanes as the stoichiometric reductand. Interestingly, the Fe‐hydride complex shows a preferential selectivity for the reduction of a P=O over a C=O bond. ;The article highlighted by this cover can be found on p. 1292 ff. of Issue 8, 2015.