《Synthesis of 4-trifluoromethyl-2H-chromenes via the reaction of 2-(trifluoroacetyl)phenols with vinyltriphenylphosphonium chloride》 was written by Golubev, Alexander S.; Ostapchuk, Petr N.; Strelkova, Tatiana V.; Kagramanov, Nikolai D.; Suponitsky, Kyrill Yu.; Takazova, Rina U.; Chkanikov, Nikolai D.. Category: ethers-buliding-blocksThis research focused ontrifluoroacetyl phenol vinyltriphenylphosphonium chloride Schweizer reaction; trifluoromethyl chromene preparation. The article conveys some information:
Substituted on the benzene ring 4-CF3-2H-chromenes were prepared from substituted 2-(trifluoroacetyl)phenols and vinyltriphenylphosphonium chloride according to the Schweizer protocol in moderate to excellent yields. The influence of the type and the position of aromatic ring substituents on yields of 4-CF3-2H-chromenes were investigated. It was shown that 4-CF3-2H-chromenes were convenient precursors to 4-CF3-coumarins. The results came from multiple reactions, including the reaction of m-Methoxyphenol(cas: 150-19-6Category: ethers-buliding-blocks)
m-Methoxyphenol(cas: 150-19-6) may be used as an analytical standard for the determination of the analyte in wine, coffee beans, wood samples, and mainstream smoke by gas chromatography (GC) based techniques.Category: ethers-buliding-blocks
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Ether | (C2H5)2O – PubChem