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Structurally Rigid 2,6-distyrylpyridines—A New Class of Fluorescent Dyes. 1. Synthesis, Steric Constitution and Spectral Properties

✍ Scribed by V. G. Pivovarenko; A. V. Grygorovych; V. F. Valuk; A. O. Doroshenko


Book ID
111592890
Publisher
Springer
Year
2003
Tongue
English
Weight
102 KB
Volume
13
Category
Article
ISSN
1053-0509

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The 2-ketopyrrole complexes 3 and 4 were isolated as minor products in syntheses of the corresponding 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY ® ) dyes 1 and 2. Compounds 4 were shown to be highly fluorescent having emissions between 504 and 544 nm with quantum yields between 0.52 and 0.89