Acetonitrile → acrylic acid 4-{2-hydroxy-3-[2-(9-oxo-9H-thioxanthen-2-yloxy)-acetoxy]-propoxy}-butyl ester

Beteiligte Stoffe

Reaktionsschritte

A reaction mixture containing (9-oxo-9H-thioxanthen-2-yloxy)acetic acid (4.0 g, 14 mmol), acetonitrile (55 ml), dimethylacetamide (10 mL), tetrabutylammonium bromide (0.5 g, 1.4 mmol) and 2,6-di-tert-butyl-4-methylphenol (0.03 g, 0.114 mmol) was heated to reflux. At this temperature 4-hydroxybutylacrylate glycidylether (2.3 g, 11.4 mmol) was added and the mixture was allowed to stir at reflux temperature for 16 hours. The mixture was cooled to room temperature and the solvent was evaporated under reduced pressure to provide 8.0 g of a yellow oil. The product was purified on a Prochrom LC80 Column using dichloromethane/ethyl acetate (60/40) as eluent on Kromasil Si60A 10 μm, to afford 1.8 g of a yellow oil.

Herkunft & Nachweise