title: Azatripyrrolic and azatetrapyrrolic macrocycles from the Mannich reaction of pyrrole: receptors for anions.
abstract: Azatripyrrolic 1 and azatetrapyrrolic 2 macrocycles were synthesized in a single step by the Mannich reaction of pyrrole in the presence of primary amine hydrochloride and were structurally characterized among several other higher analogue azapyrrolic macrocycles. Binding constants for the halide anion complexes are determined by (1)H NMR titrations and they show different binding stoichiometries.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur, India 721 302. gmani@chem.iitkgp.ernet.in
authors.forename: Ganesan
authors.initials: G
authors.lastname: Mani
authors.forename: Debasish
authors.initials: D
authors.lastname: Jana
authors.forename: Rajnish
authors.initials: R
authors.lastname: Kumar
authors.forename: Debasish
authors.initials: D
authors.lastname: Ghorai
mesh_terms: D001372:Aza Compounds / Q000737:chemistry*; D006219:Halogens / Q000737:chemistry; D047028:Macrocyclic Compounds / Q000737:chemistry*; D008352:Mannich Bases / Q000737:chemistry; D011758:Pyrroles / Q000737:chemistry*
chemical_list: D001372:Aza Compounds; D006219:Halogens; D047028:Macrocyclic Compounds; D008352:Mannich Bases; D011758:Pyrroles