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Complete 1 H and 13 C NMR spectral characterization of 1,6‐dioxapyrene and related compounds. An unusual coupling interaction through hydrogen bond in three precursors
Author(s) -
Platzer N.,
Buisson J.P.,
Demerseman P.
Publication year - 1992
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570290518
Subject(s) - chemistry , delocalized electron , electron delocalization , hydrogen bond , crystallography , coupling (piping) , characterization (materials science) , carbon 13 nmr , computational chemistry , stereochemistry , molecule , organic chemistry , nanotechnology , mechanical engineering , engineering , materials science
The 1 H and 13 C nmr studies of 1,6‐dioxapyrene show the disruption of extended delocalization of the π electrons in this recently synthesized heterocyclic skeleton. A surprising coupling interaction through hydrogen bonding was detected in the precursors bearing formyl and hydroxyl groups in peri positions.