title: Induced Correspondence of a Local π-Aromatic Sextet in Heteroannulenes: Synthesis and Characterization.
abstract: Acid-catalyzed [3+3] condensation reactions of two hitherto unknown tripyrrane moieties with pentafluorobenzaldehyde has led to the formation of new generation heteroannulene (4.1.4.1) and mutant heteroannulene (1.1.1.1.1.1). Inclusion of local π-aromatic sextets, namely the N-methyl pyrrole rings through β,β-linkages and α,β-linkages, has led to the isolation of first ever heteroannulenes cross-conjugated at four points and two points respectively within the macrocycles.
authors: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A/2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032, India.
authors: Abhijit
authors: A
authors: Mallick
authors: Department of Chemistry, Yonsei University, Seodaemun-gu, Seoul, 120-749, Korea.
authors: Juwon
authors: J
authors: Oh
authors: Department of Chemistry, Yonsei University, Seodaemun-gu, Seoul, 120-749, Korea. dongho@yonsei.ac.kr.
authors: Dongho
authors: D
authors: Kim
authors: Department of Chemistry and Biochemistry, Kyushu University, Fukuoka, 819-0395, Japan.
authors: Masatoshi
authors: M
authors: Ishida
authors: Department of Chemistry and Biochemistry, Kyushu University, Fukuoka, 819-0395, Japan.
authors: Hiroyuki
authors: H
authors: Furuta
authors: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 2A/2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032, India. ichr@iacs.res.in.
authors: Harapriya
authors: H
authors: Rath
keywords: aromaticity; cross-conjugation; heteroannulenes; unconventional pyrrole connectivity; unorthodox tripyrranes