Scheme 16.
Synthesis of 4H-chromeno[3,4-d]thiazol-4-one (60). Reagents and conditions. EtOH, NaHSO3, pH 3, reflux, 3 h, 78% yield.
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.