Efficient aldehyde olefination reactions catalyzed by an iron porphyrin complex in an ionic liquid

Tetrahedron Letters

Volumn 45, Issue 40, 2004, Pages 7415-7418

  Sun, Wei ^a   Kühn, Fritz E ^a  

^a D 85747 Garching Bei Munchen G   (Germany)

Author keywords

Aldehyde olefination; Catalysis; Diazo compounds; Iron porphyrin

Indexed keywords

ACETIC ACID DERIVATIVE; ALDEHYDE; ALKENE DERIVATIVE; AZO COMPOUND; ION; IRON COMPLEX; PHOSPHORUS DERIVATIVE; PORPHYRIN DERIVATIVE;

ARTICLE; CATALYSIS; CATALYST; COMPLEX FORMATION; LIQUID; OLEFINATION; QUANTITATIVE ANALYSIS; SPECTROSCOPY; TEMPERATURE; WITTIG REACTION;

EID: 4444383066     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.08.070     Document Type: Article

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37. 2 is added. The reaction mixture is stirred at a constant reaction temperature in an oil bath until the reaction is completed, according to the GC/MS results. After the reaction is finished, the mixture is cooled to room temperature and extracted with diethyl ether in order to separate the products from the catalyst containing ionic liquid. The catalyst stays in the ionic liquid and can be used for the next reaction. The yield and the E/Z-ratio where determined by GC. In the case of the determination of isolated yields the products were purified by flash silica gel chromatography