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ChemInform Abstract: Chiral Polymethine Dyes. Part 6. Synthesis, Absolute Configuration, UV/Vis Spectroscopic, and Chiroptical Properties of Chiral Tri- and Pentamethinium Cyanine Dyes with 1,2,3,4-Tetrahydro-3,6-dimethylquinolyl End Groups.

✍ Scribed by C. REICHARDT; W. AMANN; K. HARMS; G. SCHAEFER; J. STEIN

Publisher: John Wiley and Sons
Year: 2010
Weight: 30 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199851219

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Synthesis and UV/Vis Spectroscopic Properties of Chiral Symmetrical Pentamethinium Cyanine Dyes with 1′,2′,3′,4′,10,11-Hexahydroquinin-1′-yl and -Hexahydroquinidin-1′-yl End Groups

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Starting from the 1Ј,2Ј,3Ј,4Ј,10,11-hexahydroquinines 3a-c dihydroquinine 2a, (+)-quinidine 4a, and (+)-10,11dihydroquinidine 5a. The latter four compounds were (Schemes 1 and 3) and 1Ј,2Ј,3Ј,4Ј,10,11-hexahydroquinidine 6c (Scheme 2), we have synthesized the new chiral, hydrogenated at 70 bar and 70