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3,5-bis(trifluoromethyl)pheny1- magnesium iodide was prepared from 1-iodo-3,5- bis(trifluoromethyl)benzene. Monodeprotected masked hexayne was not particularly stable and hence was used directly without purification in a Sonogashira coupling with 1-iodo-3,5-bis(trifluoromethyl)benzene to provide mono-aryl-end-capped masked hexayne.
Hiroshi Nishida,; Naoko Takada,; Masaji Yoshimura,; Takaaki Sonoda,; Hiroshi Kobayashi. Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate. Highly Lipophilic Stable Anionic Agent for Solvent-extraction of Cations . Bulletin of the Chemical Society of Japane. 1984, 57 (9), pg no.
Simon M. E. Simpkins,; Michael D. Weller,; Liam R. Cox. β-Chlorovinylsilanes as masked alkynes in oligoyne assembly: synthesis of the first aryl-end-capped dodecayne. Chem. Commun. 2007, 39, 4035-4037.
Gefahrenhinweise (EU): H227-H315-H319-H335
Combustible liquid. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.