Bathophenanthroline disulfonate

Diphenyl-l,10-phenanthrolinedisulfonic acid, di-Na salt 3H2O (bathophenanthroline-disulfonic acid di-Na salt) [52746-49-3] M 590.6, m 300 , pKesj-O (for free acid). Dissolve crude sample in the minimum volume of water and add EtOH to ppte the contaminants. Carefully evaporate the filtrate to obtain pure material. 

Shriadah and Ohzeki [350] determined iron in seawater by densitometry after enrichment as a bathophenanthroline disulfonate complex on a thin layer of anion exchange resin. Seawater samples (50 ml) containing iron (II) and iron (III) were diluted to 150 ml with water, followed by sequential addition of 20% hydrochloric acid (100 xl), 10% hydroxyl-ammonium chloride (2 ml), 5 M ammonium solution (to pH 3.0 for iron (III) reduction), bathophenanthroline disulfonate solution (1.0 ml), and 10% sodium acetate solution (2.0 ml) to give a mixture with a final pH of 4.5. A macroreticular anion exchange resin in the... 

Pd(II) catalysts have been widely used for aerobic oxidation of alcohols. The catalytic systems Pd(OAc)2-(CH3)2SO [14] and Pd(OAc)2-pyridine [15] oxidize allylic and benzylic alcohols to the corresponding aldehydes and ketones. Secondary aliphatic alcohols, with relatively high water solubility, have been oxidized to the corresponding ketones by air at high pressure, at 100 °C in water, by using a water-soluble bathophenanthroline disulfonate palladium complex [PhenS Pd(OAc)2] [5d]. The Pd catalyst has also been successfully used for aerobic oxidative kinetic resolution of secondary alcohols, using (-)-sparteine [16]. 

Rabilloud, T, Strub, J.M., Luche, S., van Dorsselaer, a., Lunardi, j. (2001). A comparison between Sypro Ruby and ruthenium II tris (bathophenanthroline disulfonate) as fluorescent stains for protein detection in gels. Proteomics 1, 699-704. 

Nonactivated secondary alcohols were oxidized to the corresponding ketones with initial TOFs up to 100 mol mol h . Even less water-soluble and less reactive alcohols like 2-octanol could be oxidized with rates up to 20 mol moF h . Primary alcohols were oxidized to the corresponding acids. By adding TEMPO (2,2,6,6-tetramethylpiperdinyl-l-oxyl) the intermediate aldehyde could be trapped. As catalyst, the Pd complex of bathophenanthroline disulfonate (Structure 1) was used (bathophenanthroline is commercially available at approx. US 300/5 g). 

Bathophenanthroline disulfonate, sodium 4,7-bis(4-phenyl sulfonic acid)-1,10-phenanthroline, sodium salt 534 22.14 X 10 ... 

FIGURE 10.9. Square-wave voltammograms of a polypyrrole/bathophenanthroline disulfonate modified electrode (a) before and (b) after exposure to a 5-mM solution of Cu(II) (c) or Cu(I). (From Ref. 159 with permission from Elsevier)... 

PP can be provided with various electronic properties by doping it with various anions. The PP film incorporating iron bathophenanthroline disulfonic acid showed electrochromism due to the redox reaction of the complex When pyrrole was electropolyraerized in the presence of polymeric anions, the latter was incorporated in the formed PP film to give a new composite material Potassium polyvinylsulfate... 

The click reaction approach has also been adopted by Cavalli et al. [23], who introduced the alkyne functionality by derivatization of DOPE with proliolic acid. Full conversion was in this case achieved within 20 h with a small azido-NBD derivative without the use of bathophenanthroline disulfonic acid. 

The copper-catalyzed azide-alkyne cycloaddition is particularly suitable for F-labehng of sensitive biomolecules. Three different radiolabeled alkyne precursors react with azido-functionalized peptides in radiochemical yields (RCYs) of 54-99% and an overall reaction time of 30 min. The reaction is catalyzed by copper sulfate in combination with ascorbic acid or sodium ascorbate. Addition of bathophenanthroline disulfonate (Cul stabilizing agent) accelerates the cycloaddition [90]. 

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