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.
(a) Reversibility reaction scheme. (b) 1H NMR spectrum of a 1.0 mM solution of 1 in 10% DMSO-d6/CD3CN. (c) Treatment with 2 equiv. of NBu4SH. (d) Addition of 4 equiv. Zn(OAc)2. Each inset shows the 13C{1H} resonances corresponding to the alkyne region of 1.
