Efficient synthesis of tribenzohexadehydro[12]annulene and its derivatives in the ionic liquid.
A simple and efficient synthesis of tribenzohexadehydro[12]annulene and related derivatives in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate is described. A Sonogashira coupling reaction is the key step. In this system, the amount of CuI normally used can be reduced so that homocoupling is minimized.
Li
Yang
Y
Department of Chemistry, National Key Lab of Applied Organic Chemistry, Lanzhou University, Lanzhou, P.R. China.
Zhang
Jiyong
J
Wang
Wenkuan
W
Miao
Qiang
Q
She
Xuegong
X
Pan
Xinfu
X