Scheme 11.
(a) NH2Boc, PTSA, MeOH, reflux, 93 h, 38%; (b) acetamide, PTSA, MeOH, reflux, 84 h, 32%;.
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.