New crown ether styryl dyes (trans-1c,d) containing the 18-crown-6 ether fragment were synthesized. interaction of trans-1c,d dyes, as well as their analogs, trans-1a,b containing the 15-crown-5 ether fragment, with Ca(ClO4)(2) in MeCN afforded supramolecular structures (dimeric complexes). Competing reactions, trans-cis-photoisomerization with the formation of anion-''capped'' complexes of cis-1a-d and [2+2] autophotocycloaddition with the formation of cyclobutane derivatives 8a-d and Be, were observed on photolysis of solutions Elf complexes of trans-1a-d with Ca2+. Preorganization of trans-isomers in dimeric complexes with Ca2+ determined the regio- and stereoselectivity of each of the two directions of the photocycloaddition and the efficiency of the reaction.
Synthesis, complexation, and E—Z photoisomerization of azadithiacrown-containing styryl dyes as new optical sensors for mercury cations
作者:E. V. Tulyakova、O. A. Fedorova、Yu. V. Fedorov、G. Jonusauskas、L. G. Kuz’mina、J. A. K. Howard、A. V. Anisimov
DOI:10.1007/s11172-007-0082-4
日期:2007.3
New styryldyes containing azadithia-15-crown-5 fragments were synthesized. The complexation of these compounds with Ag+, Pb2+, Cu2+, Hg2+, and H+ cations was studied by 1H NMR spectroscopy, steady-state, and time-resolved spectroscopy. The stability constants of the complexes were calculated from the spectrophotometric titration data. The photophysical properties and E—Z photoisomerization of styryl
Neue Dimethinmerocyanin-Farbstoffe mit der (Sulfobutyl)benzothiazol-Gruppe als Donor-Teilchromophor und deren Aggregationsverhalten in wässriger Lösung
作者:Manfred Kussler、Heinz Balli
DOI:10.1002/hlca.19890720214
日期:1989.3.15
Novel Dimethinemerocyanine Dyes with the (Sulfobutyl)benzothiazole Group as Donor Part of the Chromophor and their Aggregation Tendency in Aqueous Solution
(磺丁基)苯并噻唑基为发色团的供体部分的新型二甲亚甲基花青染料及其在水溶液中的聚集趋势
Accumulation of the photonic energy of the deep-red part of the terrestrial sun irradiation by rare-earth metal-free <i>E</i>–<i>Z</i> photoisomerization
Here, drastic shortening of the syntheticroute of crown ether functionalized hemicyanine dyes, suitable for efficient E–Z photoisomerization under extremely low excitation light intensities compared with unconcentrated sunlight is reported. The higher energetic form was successfully stabilized by rare earth free cations – in this case by styryl dye-Ba2+ complexes. For the first time E–Z photoisomerization
[EN] INTERMEDIATE COMPOUNDS FOR THE PREPARATION OF MESO-SUBSTITUTED CYANINE, MEROCYANINE AND OXONOLE DYES<br/>[FR] COMPOSÉS INTERMÉDIAIRES POUR LA PRÉPARATION DE COLORANTS DE TYPE CYANINES, MÉROCYANINES ET OXONOLES MÉSO-SUBSTITUÉES
申请人:AGFA GRAPHICS NV
公开号:WO2009080689A1
公开(公告)日:2009-07-02
The present invention provides new intermediate compounds enabling the preparation of N-meso substituted cyanine, merocyanine or oxonole dyes wherein the N-meso substituent comprises electron withdrawing groups and wherein such N-meso substituents are introduced at the intermediate level. These intermediates enable the formation of dyes having in the meso-position N-substituents comprising electron withdrawing groups without the need for further derivatization of the meso-substituent at the dye level.
PH sensitive cyanine dyes as reactive fluorescent reagents
申请人:CARNEGIE MELLON UNIVERSITY
公开号:EP1394219A1
公开(公告)日:2004-03-03
The present invention provides pH sensitive cyanine dyes having the structure (I)
wherein X and Y are independently selected from >C(C1 - C4alkyl)2, sulfur and oxygen; R1 and R2 are independently selected from H, CH2NH2, SO3-, phosphate, phosphonate, quaternary ammonium, (CH2)qCOOH, NCS, CH2NH-COR7, where R7 is C1 - C20 straight or branched alkyl and (CH2)qCOOH where q is an integer from 0 - 10; R3 is H or -L-P where L is selected from C1 - C20 straight or branched alkyl optionally containing 0, 1 or 2 unsaturated groups selected from alkenyl and alkynyl, and P is selected from a reactive group, H, C1 - C20 straight or branched alkyl, SO3-, NH2, quaternary ammonium, CH2NH-COR8, where R8 is C1 - C20 straight or branched alkyl, -(CH2)mCOOH, NHR9 where R9 is C1 - C20 straight or branched alkyl; n is an integer from 0 - 3; p and r are independently 0, 1, 2, 3 or 4 and where p and/or r is greater than 1, each R1 and each R2 may be different, and m is an integer from 1 - 10; and salts and protonated derivatives thereof and methods of using same as fluorescent reagents.