Formation and properties of cyclo[6]pyrrole and cyclo[7]pyrrole.
Oxidative coupling of a tetraalkylbipyrrole under FeIII-mediated coupling conditions in the presence of HCl results in a mixture of cyclo[6]- and cyclo[7]pyrroles, as well as the known cyclo[8]pyrrole. This "matched set" of heteroannulenes was analyzed by spectroscopic, electrochemical, and X-ray diffraction methods.
Köhler
Thomas
T
Department of Chemistry and Biochemistry, Institute for Cellular and Molecular Biology, The University of Texas, 1 University Station - A5430, Austin, Texas 78712-0165, USA.
Seidel
Daniel
D
Lynch
Vincent
V
Arp
Forrest O
FO
Ou
Zhongping
Z
Kadish
Karl M
KM
Sessler
Jonathan L
JL