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Syntheses, Structures, and Anion‐Binding Properties of Two Novel Calix[2]benzo[4]pyrroles
Author(s) -
Cafeo Grazia,
Kohnke Franz H.,
White Andrew J. P.,
Garozzo Domenico,
Messina Angela
Publication year - 2007
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200600452
Subject(s) - pyrrole , counterion , chemistry , benzene , phenylene , acetone , ion , fluoride , medicinal chemistry , polymer chemistry , organic chemistry , inorganic chemistry , polymer
Calix[2]benzo[4]pyrrole m ‐ 6 and p ‐ 6 , each containing two dipyrromethane moieties and two m ‐phenylene or p ‐phenylene units, respectively, were readily synthesised from pyrrole, 1,3‐ and 1,4‐bis(1,1′‐dimethylhydroxymethyl)benzene, ( m ‐ 4 and p ‐ 4 , respectively) and acetone. Macrocycles m ‐ 6 and p ‐ 6 were tested as receptors for a selection of anions, such as acetate, dihydrogenphosphate and fluoride. The X‐ray structures of m ‐ 6 and p ‐ 6 and those of the complexes m ‐ 6⋅ F − , m ‐ 6⋅ Cl − and m ‐ 6⋅ CH 3 COO − (with an n Bu 4 N + counterion) were also determined.