- Crown ether styryl dyes: 21. Synthesis, spectral properties, and complex formation of trans-isomers of the chromogenic dithia-15(18)-crown-5(6) ethers
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Novel styryl dyes containing dithia-15(18)-crown-6(5)-ether moieties were synthesized. Their selective complex formation with Hg2+ and Ag+ ions was studied by 1H NMR and electronic spectroscopy; the stability constants of the Ag+ complexes and the relative stability constants (in relation to benzodithia-18-crown-6) of the Hg2+ complexes were determined. The chemical shifts of the β,β′-protons in the CH2S group change upon the complex formation in parallel with the logK1 values of the complexes.
- Gromov,Fedorova,Vedernikov,Fedorov,Alfimov
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- Nucleic acid probe, method for designing nucleic acid probe, and method for detecting target sequence
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The present invention provides a nucleic acid probe that can achieve high detection sensitivity and high specificity in mutation detection, mismatch detection, etc. by the PCR method, a method for designing such a nucleic acid probe, and a method for detecting a target sequence. The nucleic acid probe includes a nucleic acid molecule, and the nucleic acid molecule includes a plurality of fluorescent dye moieties that exhibit an excitonic effect. At least two of the fluorescent dye moieties that exhibit an excitonic effect are bound to the same base or two adjacent bases in the nucleic acid molecule with each fluorescent dye moiety being bound via a linker (a linking atom or a linking atomic group). The extension-side end of the nucleic acid molecule is chemically modified, thereby preventing an extension reaction of the nucleic acid molecule.
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Page/Page column 56; 57
(2018/02/28)
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- COMPOUND, NUCLEIC ACID, LABELING SUBSTANCE, AND DETECTION METHOD
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The present invention provides a compound represented by the following chemical formula (I); a tautomer or stereoisomer of the compound; or a salt of the compound, the tautomer, or the stereoisomer. In the chemical formula (I), R1 and R2
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Paragraph 0195
(2015/09/28)
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- Synthesis and spectroscopic studies of novel photochromic benzodithiacrown ethers and their complexes
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New styryl dyes containing the benzodithia-18-crown-6 fragment have been synthesized and their photoisomerization reactions and complexes with Hg2+ and Ag+ cations have been investigated by steady-state electronic and resonance Raman
- Alfimov, Michael V.,Fedorov, Yurii V.,Fedorova, Olga A.,Gromov, Sergey S.,Hester, Ronald E.,et al.
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p. 1441 - 1448
(2007/10/03)
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- GAS/SOLID-REACTIONS WITH SULFUR COMPOUNDS
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The various types of gas/solid-reactions (addition, elimination, substitution, condensation, catalyzed cycloaddition) in different branches of sulfur chemistry (heterocycles, S-vinyl-compounds, thioethers, thiols, sulfur dioxide) are reviewed, new types a
- Kaupp, Gerd,Luebben, Doris,Sauerland, Olaf
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p. 109 - 120
(2007/10/02)
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