Scheme 5. Fluorination of Alkyl Mesylates Using Calixarenes Functionalized with Crown Ethers and Tertiary Alcohols (1 equiv) as Promoters and TBAF or CsF (3 equiv) as Fluorinating Reagent.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.