1150-36-3Relevant articles and documents
Aromatic fluorine-induced one-pot synthesis of ring-perfluorinated trimethine cyanine dye and its remarkable fluorescence properties
Funabiki, Kazumasa,Saito, Yuki,Yagi, Kazutaka,Kubota, Yasuhiro,Miwa, Yohei,Yoshida, Michiyuki,Sakurada, Osamu,Kutsumizu, Shoichi,Inuzuka, Toshiyasu,Kikuchi, Takashi
, p. 4372 - 4380 (2019)
We have developed a novel aromatic fluorine-induced one-pot synthesis of ring-perfluorinated trimethine cyanine dye without the use of a pyridine by reacting hexafluorobenzoindolenine with 5 equiv of methyl trifluoromethanesulfonate in mixed solvents of dimethylformamide and toluene. The thus-obtained ring-perfluorinated trimethine cyanine dye shows much better fluorescence properties, including intensity, quantum yield, and lifetime, than the nonfluorinated dye, not only in CH2Cl2 solution and the poly(methyl methacrylate) film but also in the powder state. Furthermore, ring-perfluorinated trimethine cyanine dye 2a shows better photostability toward white light-emitting diode irradiation than nonfluorinated dye trimethine cyanine dye 2b.
Synthesis method of 2-bromoheptafluoronaphthalene compound
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Paragraph 0013, (2018/06/26)
The invention relates to a synthesis method of 2-bromoheptafluoronaphthalene compound. The synthesis method includes the steps of: 1) a fluorination reaction; 2) a hydrazine substitution reaction; and3) a bromination reaction. With octachloronaphthalene as a raw material, the 2-bromoheptafluoronaphthalene is prepared through reactions of fluorination, hydrazine substitution and bromination. The method is low in cost, has simple reaction steps and low toxicity, is convenient to carry out and high in yield, and is suitable for industrial production.
WATER-SOLUBLE FLUORO-SUBSTITUTED CYANINE DYES AS REACTIVE FLUORESCENCE LABELLING REAGENTS
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Page/Page column 20, (2010/11/24)
Disclosed are cyanine dyes that are useful for labelling and detecting biological and other materials. The dyes are of formula (I): in which at least one of groups R1, R2, R3, R4, R5, R6, R