80054-91-7Relevant academic research and scientific papers
A simple, rapid procedure for nucleophilic radiosynthesis of aliphatic [18F]trifluoromethyl groups
Riss, Patrick J.,Aigbirhio, Franklin I.
supporting information; experimental part, p. 11873 - 11875 (2011/12/04)
A procedure for the radiosynthesis of aliphatic [18F] trifluoromethyl groups by reacting 1,1-difluorovinyl precursors with [ 18F]fluoride ions, resulting in the equivalent of direct nucleophilic addition of H[18F]F, has been developed. A variety of 18F-labelled model compounds were then obtained and two potential [18F]radiotracers were synthesised by a two step process starting from 1,1-difluorovin-2-yl 4-toluenesulfonate. The method is widely applicable for the synthesis of novel radiotracers in high radiochemical yields and good specific activity.
Acid-Catalyzed Reaction of 2,2,2-Trifluorodiazoethane for Analysis of Functional Groups by 19F Nuclear Magnetic Resonance Spectrometry
Koller, K. L.,Dorn, H. C.
, p. 529 - 533 (2007/10/02)
The acid-catalyzed reactions of trifluorodiazoethane with alcohols, phenols, thiols, and carboxylic acids are reported.The yield data for these trifluoroethyl derivatives suggest a simple, and in many cases, quantitative method for introduction of a fluorine tagging group.The 19F chemical shifts indicate that most functional groups (e.g., phenols, alcohols, etc.) have fairly well resolved chemical shifts regions.In addition, paramagnetic shift reagents have been utilized to selectively differentiate carboxylic acids from other active hydrogen functional groups.
