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2005
Fused pyridine derivatives
R 0450
Domino Cyclization/Electrocyclization/Elimination Reactions of Arylacetonitriles
N,N'-Bis(1-naphthyl)oxaldiimidoyl Dichlorides: Efficient Synthesis of Fluo14- 161 with
rescent 15H-Benzo[h]benzo[6,7]indolo[3,2-b]quinolines. — The domino cyclization/electrocyclization/elimination reaction between the oxaldiimidoyl chloride (IV)
and the cyanides (V) allows a convenient synthesis of the title compounds (VI). They
can be regarded as hexacyclic δ-carbolines and are novel fluorescent dyes. The
two-step synthesis via (VII) gives lower yields. — (ANDERS, J. T.; LANGER*, P.;
Eur. J. Org. Chem. 2004, 24, 5020-5026; Inst. Chem. Biochem.,
Ernst-Moritz-Arndt-Univ., D-17487 Greifswald, Germany; Eng.) — Kieslich
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