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.
Reagents and conditions: (a) ethyl vinyl ether, AcOH, 25 °C → 100 °C; (b) N-bromosuccinimide (NBS), conc. H2SO4, 25 °C; (c) NHMe2, H2O, 80 °C; (d) 1,2,3-triazole, K2CO3, DMF, 100 °C; (e) tetrabutylammonium fluoride (TBAF), tetrahydrofuran (THF), 70 °C; (f) TREAT HF, 130 °C.
