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.
Unless specified otherwise, reactions were carried out using 0.2 mmol of 1 for 48 h. Isolated yields. Condition A: 10 equiv of carboxylic acid at 75 °C. Condition B: 3.0 equiv of carboxylic acid at 150 °C.
