Scheme 2.
Synthetic schemes for the preparation of A. 4-nitrobenzyl ether derivatives 26a,b,d-k,o,q, B. 4-nitrobenzyl ester derivatives 27c-i,k-n, and C. 4-nitrobenzyl thioether derivatives 28g-i,k,p.
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.