Anion Binding Properties

1
Pyrrole Amides and Their Use as Building
Blocks for the Preparation of Anion
Receptors Michael T. Huggins
The objective was expanded to include the
preparation of pyrrole a-sulfonamides.
Specifically, the synthesis and initial molecular
recognition studies of four simple pyrrole
a-sulfonamide derivatives, 1-4, is reported.
Table 1. Stability Constants (M-1) of 1-4 with
various guest species
BA Benzoic acid nb No detectable binding
Studies conducted in CDCl3 at 25oC All anions
used as their respective tetrabutylammonium salts.