199444-11-6Relevant articles and documents
PROCESS FOR THE PRODUCTION OF MESO-SUBSTITUTED CYANINE DYES
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Page 24, (2008/06/13)
A single-step process for the production of meso-substituted cyanine dyes is provided comprising the reaction of a dye (III), with (a) a methylene compound (IV) or (V) or a quaternary salt (VI) or (VII) and (b) a compound selected from functionalized (hetero)aromatic compounds Ar-B, saturated cyclic amines (IV) and heteroaromatic compounds (V).