Perfluoroalcohols: The Preparation and Crystal Structures of Heptafluorocyclobutanol and Hexafluorocyclobutane‐1,1‐diol

The first X‐ray crystal structure of an α‐fluoroalcohol is reported. Heptafluorocyclobutanol was obtained in quantitative yield from hexafluorocyclobutanone by HF addition in anhydrous hydrogen fluoride. The compound was characterized by its X‐ray single crystal structure. Heptafluorocyclobutanol readily undergoes hydrolysis to hexafluorocyclobutane‐1,1‐diol, which was also structurally characterized by X‐ray diffraction. F und OH an einem C: Röntgen‐Strukturanalysen von Heptafluorcyclobutanol (siehe Bild: C grau, O rot, H weiß, F gelb) liefern die erste strukturelle Charakterisierung eines α‐Fluoralkohols. Der Alkohol hydrolysiert leicht unter HF‐Abspaltung und Bildung von Hexafluorcyclobutan‐1,1‐diol, das ebenfalls strukturell charakterisiert wurde.