Scheme 2. General procedures for the synthesis of compounds 2j and 2l–2n. (a) Pd(dppf)Cl2, K2CO3, dioxane/H2O, 100 °C, overnight, 56–62%; (b) iodine, K2CO3, DMF, 65 °C, 10 h, 80–88%; (c) Pd(dppf)Cl2, Cs2CO3, dioxane/H2O, 100 °C, 8 h, 12–30%.
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.