Category: 971-66-4

Kaewchuay, Netnapit published the artcileA novel hybrid mode of sample injection to enhance CZE sensitivity for simultaneous determination of a pyridine-triphenylborane anti-fouling agent and its degradation products, Synthetic Route of 971-66-4, the publication is Electrophoresis (2011), 32(12), 1486-1491, database is CAplus and MEDLINE.

We developed a novel hybrid sample injection mode (HSIM) that presents the combination of electrokinetic injection and vacuum injection to enhance detection sensitivity in CZE. Samples were introduced using both vacuum and electrokinetic injections simultaneously, with a water plug injected into the capillary prior to sample introduction (i.e. similarly to field-amplified sample injection, FASI). Using a sample mixture containing an anti-fouling agent applied to ship hulls, pyridine-triphenylborane and its degradation products (diphenylborinic acid, phenylboronic acid, and phenol) dissolved in ACN, the length of water plug, time, and voltage for sample introduction were optimized. The signal intensity (peak height) was found to be up to a 30-fold increased using HSIM by applying 4 kV for 4 s at the inlet end of the capillary as the cathode with supplementary vacuum in comparison with only vacuum injection for 4 s. The LODs (at a S/N of 3) for pyridine-triphenylborane, diphenylborinic acid, phenylboronic acid, and phenol were 0.88, 1.0, 21, and 23 μg/L, resp. At the level of 0.04 mg/L, the RSDs (n=4, intra-day) for the above analytes were in the ranges of 1.9-11, 4.3-9.2, and 0.34-0.66% for peak area, peak height, and migration time, resp. The HSIM is a simple and promising procedure useful for enhancing the sensitivity for both low-and high-mobility ions in CZE.

Electrophoresis published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Synthetic Route of 971-66-4.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Fukushi, Keiichi published the artcileSimultaneous determination of a pyridine-triphenylborane anti-fouling agent and its estimated degradation products using capillary zone electrophoresis, Application of Triphenyl(pyridin-1-ium-1-yl)borate, the publication is Journal of Chromatography A (2010), 1217(14), 2187-2190, database is CAplus and MEDLINE.

A com. organoborane compound, pyridine-triphenylborane (PTPB), is often applied to ship hulls as an anti-fouling agent. The authors developed capillary zone electrophoresis (CZE) with direct UV detection for the simultaneous determination of PTPB and its estimated degradation products: diphenylborinic acid (DPB), phenylboronic acid (MPB), and phenol. The limits of detection (LODs) for PTPB, DPB, MPB, and phenol were, resp., 25, 30, 50, and 29 μg/L at a signal-to-noise ratio of three. At concentrations of 0.5 mg/L, values of the relative standard deviation (relative standard deviation, n = 6, intra-day) of peak area were obtained, resp., for PTPB, DPB, MPB, and phenol, as 4.1%, 4.1%, 4.7%, and 3.4% for peak heights 3.6%, 3.2%, 1.7%, and 1.4%, and for migration times 1.1%, 1.1%, 1.0%, and 0.73%. The analytes were detected within 14 min. Simple photodegradation experiments were conducted to verify the usefulness of the proposed method for addnl. PTPB degradation studies.

Journal of Chromatography A published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Application of Triphenyl(pyridin-1-ium-1-yl)borate.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Okamura, H. published the artcileToxicity evaluation of new antifouling compounds using suspension-cultured fish cells, Category: pyridine-derivatives, the publication is Chemosphere (2002), 46(7), 945-951, database is CAplus and MEDLINE.

A simple, rapid toxicity test was developed using the suspension-cultured fish cell line CHSE-sp derived from chinook salmon Oncorhynchus tshawytscha embryos to assess the toxicity of new marine antifouling compounds The compounds tested were copper pyrithione, Diuron, Irgarol 1051, KH101, Sea-Nine 211, and zinc pyrithione, all of which have been nominated in Japan as possible replacements for organotin compounds The in vitro acute toxicity (24-h EC₅₀) of the six compounds to these fish cells was evaluated using the dye Alamar Blue to determine cell viability, and then correlated with the results of in vivo chronic toxicities (28-day LC₅₀) to juvenile rainbow trout Oncorhynchus mykiss. The suspension-cultured fish cells were found to be suitable for the screening of such chems. before performing an in vivo test. The toxicities of the test compounds obtained from both tests, shown in decreasing order, were as follows: copper pyrithione > zinc pyrithione > KH101 â‰?Sea-Nine 211 > Diuron > Irgarol 1051. The herbicides Diuron and Irgarol 1051 showed the least toxicity, while the pyrithiones had the greatest toxicity.

Chemosphere published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Category: pyridine-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Song, Fan published the artcileSynergistically Improved Antifouling Efficiency of a Bioinspired Self-renewing Interface via a Borneol/ Boron Acrylate Polymer, Synthetic Route of 971-66-4, the publication is Journal of Colloid and Interface Science (2022), 459-466, database is CAplus and MEDLINE.

Underwater facilities are often perplexed by severe and ubiquitous biofouling. The widely applied com. antifouling materials still have several challenges in static applications. Herein, a polymer containing isoborneol and borane (PBABs), the borneol derivative structure and grafted pyridine-triphenylborane (PTPB) as antifouling groups were prepared by radical polymerization PBABs showed high antibacterial rates for Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) of up to 95.1% and 81.1%, resp., confirming superior antibacterial adhesion propertys. More importantly, PBABs effectively reduced the expression of mussel adhesion protein, indicating superior antifouling propertys, resulting from the synergistic effect of multiple antifouling functional groups on the material′s surface. Therefore, the PBABs have been evaluated as noncytotoxic, low-cost, easily synthesized, and mass-produced, which demonstrates their great potential for actual marine applications.

Journal of Colloid and Interface Science published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C10H10O2, Synthetic Route of 971-66-4.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Mikhailov, B. M. published the artcileOrganoboron compounds. Synthesis of complex compounds of unsymmetric borontriaryls, COA of Formula: C23H20BN, the publication is Doklady Akademii Nauk SSSR (1956), 94-7, database is CAplus.

All operations with Li derivatives described below were performed under N. To 0.07 mol 1-C₁₀H₇Li in Et₂O was added at -10° in 1 h. 16.6 g. Ph₂BOCH₂CHMe₂; after 2 h. at room temperature there was obtained a precipitate of 30% [Ph₂(1-C₁₀H₇)BOCH₂CHMe₂]Li.2Et₂O (I), a crystalline solid. The filtrate from this was treated with NH₃ yielding 30% 1-C₁₀H₇BPh₂.NH₃, a solid (from C₆H₆-pentane). Similarly, 0.028 mol PhLi and 9.4 g. iso-BuOB(C₁₀H₇-1)₂ gave 80% [(1-C₁₀H₇)₂BPhOCH₂CHMe₂]Li (II). I (0.9 g.) in Et₂O-C₆H₆ was treated with 0.5 mL. pyridine; after evaporation the residue was treated with H₂O yielding an insoluble precipitate of 88% [Ph₂B(1-C₁₀H₇)].C₅H₅N, m. 170-5°. Similarly, II gave 80% (1-C₁₀H₇)₂BPh.C₅H₅N, m. 213-15°. Similarly was prepared 46% (1-C₁₀H₇)₂(o-MeC₆H₄)B.C₅H₅N, m. 203-5°. Passage of NH₃ into II in Et₂O gave after evaporation of solvent and dilution with H₂O 75% insoluble (1-C₁₀H₇)₂BPh.NH₃, m. 170-3° (shrinks at 135-44°). From o-MeC₆H₄Li and iso-BuOBPh₂ was prepared the complex Li salt (IIa) which treated with NH₃ in Et₂O gave 54.5% (o-MeC₆H₄)BPh₂.NH₃, m. 175-8° (shrinks at 147-50°), while the filtrate on addition of KBr gave o-MeC₆H₄BPh₂K, colorless crystals. Similarly, PhLi and iso-BuOBPh₂ gave 65% Ph₃B.NH₃, m. 202-4°, while the filtrate with KBr gave a little Ph₄BK. Passage of dry HCl into I in C₆H₆, filtration and evaporation gave a residue which taken up in pentane and treated with NH₃ gave 97% Ph₂BOCH₂CHMe₂.NH₃ (III), m. 101-3°, while the filtrate gave C₁₀H₈; III, m. 103-5°, forms from NH₃ and the ester directly. Similarly IIa treated with HCl, then with NH₃ as above gave 70% III. Treatment of III with 1 mol PhLi in Et₂O gave 50% Ph₃B.NH₃. Addition of 0.0043 mol iso-BuOBPh₂ to 0.005 mol PhLi without cooling in Et₂O followed by 1 mol pyridine rapidly gave 96% Ph₃B.C₅H₅N, decompose 215°. Similarly were prepared o-MeC₆H₄BPh₂.C₅H₅N, m. 172-4°, and 85% (1-C₁₀H₇)₂(o-MeC₆H₄)B.C₅H₅N, m. 203-5°.

Doklady Akademii Nauk SSSR published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, COA of Formula: C23H20BN.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Amaya, Toru published the artcileSelective oxidative ligand coupling of organoborates bearing an alkynyl group, Formula: C23H20BN, the publication is Advanced Synthesis & Catalysis (2009), 351(7+8), 1025-1028, database is CAplus.

Selective oxidative ligand coupling of alkynyl(triaryl)borates was achieved by treatment with ethoxyvanadyl dichloride [VO(OEt)Cl₂] to form the sp-sp² carbon-carbon bond. A one-pot procedure through the in situ preparation of the borate was demonstrated using triphenylborane and 1-ethynyl-4-methoxybenzene.

Advanced Synthesis & Catalysis published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Formula: C23H20BN.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Tsunemasa, Noritaka published the artcileEffects of Organoboron antifoulants on oyster and sea urchin embryo development, Application of Triphenyl(pyridin-1-ium-1-yl)borate, the publication is International Journal of Molecular Sciences (2013), 421-433, database is CAplus and MEDLINE.

Prohibition of Ot (organotin) compounds was introduced in Japan in 1997 and worldwide from Sept. 2008. This meant that the production of paints containing TBT compounds was stopped and alternatives to the available Ot antifoulants had to be developed. It has been claimed that the degradation byproducts of these alternative antifoulants were less toxic than those of Ot compounds Since the introduction of the alternative antifoulants, the accumulation of these compounds has been reported in many countries. However, the toxicity of these compounds was still largely unreported. Here, the toxicity of the alternative Ot antifoulants TPBP (triphenylborane pyridine) and TPBOA (triphenylborane octadecylamine) and their degradation products on Crassostrea gigas and Hemicentrotus pulcherrimus were tested. The results showed that toxic effects in C. gigas was higher for each antifouling biocide than that in Hemicentrotus pulcherrimus. Also, while the toxicity of the Organoboron antifoulants and the Ots were the same, the former’s degradation products were much less harmful.

International Journal of Molecular Sciences published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C6H6N2O, Application of Triphenyl(pyridin-1-ium-1-yl)borate.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Pickles, G. M. published the artcileThe reactions of diborane with aryl organotin compounds, Application of Triphenyl(pyridin-1-ium-1-yl)borate, the publication is Journal of Organometallic Chemistry (1984), 260(1), 7-15, database is CAplus.

Treating R₄Sn (R = Ph, 2- and 4-tolyl, 4-ClC₆H₄) and Ph₃SnX (X = Cl, H, OH, OAc, O₂CCF₃) with BH₃ gave transmetalation, in which â‰? aryl group was transferred to B. The organoboron intermediates give phenols upon oxidation and boronic and borinic acids upon hydrolysis. Pyridine (L) complexes of organoboranes, Ph₂BHL and Ph₃BL were also isolated.

Journal of Organometallic Chemistry published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Application of Triphenyl(pyridin-1-ium-1-yl)borate.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Eisch, John J. published the artcileRearrangements of organometallic compounds. 26. Bora-aromatic systems. 15. Skeletal rearrangements of arylborane complexes mediated by redox reactions: thermal and photochemical oxidation by metal ions, Application of Triphenyl(pyridin-1-ium-1-yl)borate, the publication is Journal of Organometallic Chemistry (1994), 464(1), 11-21, database is CAplus.

A variety of metal salts are reduced by thermal and photochem. interaction with tetraarylborate salts and with neutral alkyl- and aryl-borane complexes. In the cases of Cu²⁺, Cu⁺, Ni²⁺, Co²⁺, Pd²⁺, Pt²⁺, Ag⁺, Zn²⁺, Hg²⁺, Sn²⁺, Pb²⁺ and Rh³⁺ salts, such photochem. reductions with NaBPh₄ led to the deposition of the free metal, while a number of binary mixtures of metal salts led to the codeposition of both metals, sometimes as true alloys, under such photoreductions The arylborate reductants underwent oxidative coupling of the aryl groups to form biaryls in a strictly intra-ionic (for BAr₄^–) or intramol. (Ar₃B) manner, resp. Individual studies of the photochem. of the tetraarylborate anion itself, of cuprous tetraphenylborate and of the triphenylborane-pyridine complex adduced evidence for a gamut of reactive intermediates capable of serving as the photoreductant for metal ions, such as triarylborane radical anions, diarylborate(I) anions or arylborenes, 7-borabicycloheptadiene anions or neutral complexes and finally arylborohydride anions or arylboron hydrides. The role of these intermediates both in the photoinduced skeletal rearrangements of arylboranes and in the concomitant reduction of metal ions is discussed in critical detail.

Journal of Organometallic Chemistry published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Application of Triphenyl(pyridin-1-ium-1-yl)borate.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Sarkar, Abhijit published the artcileDendritic polymer networks: a new class of nano-domained environmentally benign antifouling coatings, Category: pyridine-derivatives, the publication is ACS Symposium Series (2009), 165-186, database is CAplus.

A new type of antifouling coatings for application in both fresh water and marine environments has been developed utilizing dendritic polymer nanotechnol. The resulting coatings are capable of encapsulating and strongly binding electrophilic biocides in their dendritic nano-cells, where biocides retain their antifouling activity while being prevented from leaching and polluting the aquatic environment. These coatings for the first time successfully combine the best properties of non-stick and biocide-containing coatings and provide an environment-ally benign solution for the protection of man-made objects.

ACS Symposium Series published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C23H20BN, Category: pyridine-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem