Scheme 16.
Preparation of difluoromethyl 5-aminopyrazoles- and isoxazoles. a 19F-NMR yield using PhF as internal standard. b isolated yield. c 40 °C, 18 h. DIPEA, N,N-diisopropylethylamine.
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.