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.
General synthetic method to 4,4′‐dimethoxytrityl compounds 5–20 E–H. Reagents and conditions: a) 4,4′‐dimethoxytrityl chloride, (2.8 equiv), pyridine (4.5 mL mmol−1), 80 °C, 18 h; b) 4,4′‐dimethoxytrityl chloride, (2.8 equiv), DMAP (2.8 equiv), pyridine (4.5 mL mmol−1), 80 °C, 18 h.
