Organofluorine Chemistry: Techniques and Synthons - D.J. Burton - Google Books

https://books.google.de/books?id=kDDjl99WKkEC&pg=PA165#v=onepage

Fluorine is unique in that it is possible to replace hydrogen by fluorine either singly or multiply, in an organic molecule and, in so-doing create a potentially infinite extension to organic chemistry that is entirely synthetic. The excitement of the…