Citation: Zeper ABLIZ, Hiroshi MORIYAMA, Junji AOKI, Toyotoshi UEDA. EVIDENCE FOR AROMATIC sp² C-H…O=C INTRAMOLECULAR INTERACTION IN PYRIDINO AND BENZOBENZANTHRONE SKELETONS[J]. Chinese Chemical Letters, ;1995, 6(5): 385-398. shu

EVIDENCE FOR AROMATIC sp² C-H…O=C INTRAMOLECULAR INTERACTION IN PYRIDINO AND BENZOBENZANTHRONE SKELETONS

a Department of Chemistry, Xin Jiang University, Urumchi 830046;
b Department of Chemistry, Toho University, Funabashi, Chiba 274, Japan;
c Department of Chemistry, Meisei University, Hino, Tokyo 191, Japan

Received Date: 26 January 1995

Fund Project: Address for correspondence, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing 100050.

The evidence for the sp² C-H…O=C intramolecular interaction like hydrogen bond observed from the ¹H NMR signal shifted extremely to down field (δ=10.23 ppm) at the bay area of phenaleno[2,3-f] quinolin-13-one has been confirmed by EIMS and MS/MS(CAD) spectroscopy and IR spectroscopy,as well as MNDO-PM3 calculations.
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