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) 1-octyne, Pd(PPh3)4, CuI, Et3N, 60 °C, 12 h; (b) (i) 10% aq HCl, NaNO2; (ii) NaN3; (c) 3-ethynylpyridine, sodium ascorbate, CuSO4, t-BuOH/H2O (1:1); (d) Pd/C, H2, EtOAc, rt, 2 days.
