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2005
Cyanine and polymethine dyes
T 1300
Reactions with Methylamine of Pyrilo-2-cyanines Containing Polyfluorophenyl
Substituents. — The title reaction of pyrylocyanines such as (III) with Me 2NH give
01- 152 rise
to pyridocyanines. In the case of pentafluorophenyl derivatives such as (IIIa) the
replacement of the ring oxygen by the NMe-group is accompanied by substitution of
the p-fluorine by a methylamino group. — (KARGAPOLOVA, I. Y.; ORLOVA, N. A.;
SHAKIROV, M. M.; GERASIMOVA, T. N.; SHELKOVNIKOV, V. V.; Russ. J. Org.
Chem. 40 (2004) 5, 711-718; Vorozhtsov Inst. Org. Chem., Sib. Branch Russ. Acad.
Sci., Novosibirsk 630090, Russia; Eng.) — R. Staver
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