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.
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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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