title: Möbius Aromatic Core-Modified Heterocyclic [20] Macrocycles (4.1.1) with a Protruding N-Methyl Pyrrole Ring.
abstract: Herein, we report the first synthesis of an unorthodox tripyrrane moiety from the regioselective β-benzoylation of pyrrole and the acid-catalyzed condensation of the desired precursors. A [3+1] Mac Donald type condensation strategy for this tripyrrane has led to the exclusive isolation of two hitherto-unknown aromatic [20] heterocyclic macrocycles (4.1.1).
authors.affiliation: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2 A/2 B Raja SC Mullick Road, Jadavpur, Kolkata, 700 032, India), Fax: (+91) 33-24732805.
authors.forename: Abhijit
authors.initials: A
authors.lastname: Mallick
authors.affiliation: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2 A/2 B Raja SC Mullick Road, Jadavpur, Kolkata, 700 032, India), Fax: (+91) 33-24732805. ichr@iacs.res.in.
authors.forename: Harapriya
authors.initials: H
authors.lastname: Rath
keywords: Möbius aromaticity; core modification; heteroannulenes; regioselectivity; unorthodox tripyrranes