Determination of Hydrogen Peroxide on Modified Glassy Carbon Electrode by Polytetrakis(2-aminophenyl)porphyrin Nanowire

Jeong, Haesang; Kim, Songmi; Seol, Heejin; You, Jung‐Min; Jeong, Eun Seon; Kim, Seul Ki; Seo, Kyung-Sik; Jeon, Seungwon

doi:10.5012/bkcs.2009.30.12.2979

Cited by 17 publications

(1 citation statement)

References 60 publications

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“…This is the most important domain for medical detection, correlated with early diagnosis for diseases such as Alzheimer’s, Parkinson’s, Huntington’s, andcancer [32] because higher concentrations of H 2 O 2 than 50 μM are considered cytotoxic for life [33]. …”

Section: Introductionmentioning

confidence: 99%

Trace Oxygen Sensitive Material Based on Two Porphyrin Derivatives in a Heterodimeric Complex

et al. 2017

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The successful preparation of a novel dimer complex formed between 5,10,15,20-tetrakis(3,4-dimethoxyphenyl)-porphyrin Fe(III) chloride and (5,10,15,20-tetraphenylporphinato) dichlorophosphorus(V) chloride using the well-known reactivity of the P–X bond is reported. The obtained complex was characterized by UV-vis, Fourier transform infrared spectroscopy (FT-IR), fluorescence, 1H-NMR, 13C-NMR, and 31P-NMR spectroscopic techniques and also by additional Heteronuclear Single Quantum Coherence (HSQC) and Heteronuclear Multiple Bond Correlation (HMBC) experiments in order to correctly assign the NMR signals. Scanning electron microscopy (SEM) and EDX quantifications completed the characterizations. This novel porphyrin dimer complex demonstrated fluorescence sensing of H2O2 in water for low oxygen concentrations in the range of 40–90 µM proving medical relevance for early diagnosis of diseases such as Alzheimer’s, Parkinson’s, Huntington’s, and even cancer because higher concentrations of H2O2 than 50 μM are consideredcytotoxic for life. Due to its optical properties, this novel metalloporphyrin–porphyrin based complex is expected to show PDT and bactericidal activity under visible-light irradiation.

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Section: Introductionmentioning

confidence: 99%

Trace Oxygen Sensitive Material Based on Two Porphyrin Derivatives in a Heterodimeric Complex

et al. 2017

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Catalysis of Organic Processes by Metal Phenolates

Serra¹,

Murtinho²

2012

Patai's Chemistry of Functional Groups

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Transition metal catalysts with phenolates as ligands constitute an extensive class of complexes with application in a great variety of catalytic transformations.Because phenol groups can be sterically and electronically modified by the introduction of substituents with different characteristics, the door is opened to a myriad of catalysts with characteristics of reactivity and selectivity for promoting innumerous transformations of synthetic interest in organic chemistry. Metal phenolates have therefore become essential participants in catalytic organic synthesis, including catalytic asymmetric synthesis. Oxidations of alkenes, sulfides, alcohols and alkanes, additions of trimethylsilylcyanide, diorganozincs and nitroalkanes to CO and CN bonds and Diels–Alder reactions are some examples of the types of reactions that are promoted by these catalysts. This chapter provides an overview of recent advances in the catalysis of organic processes by metal phenolates, with emphasis on the last decade.

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Mild and Selective Activation and Substitution of Strong Aliphatic CF Bonds

Janjetovic

Träff

Hilmersson

2015

Chemistry A European J

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A procedure for chemoselectively manipulating the strong aliphatic C-F bond with direct transformation into a C-N bond under mild conditions is reported. The activation and subsequent substitution of primary alkyl fluorides is mediated by La[N(SiMe3)2]3, and results in high to excellent yields of tertiary amines. The methodology displays high selectivity towards the C(sp(3))-F bond, and a variety of secondary amines are applicable as nucleophiles. Mechanistic investigations reveal a reaction that is first order with respect to [La[N(SiMe3)2]3], [R(1)R(2)NH], and [alkyl fluoride], and a 6-membered cyclic transition state is proposed. In addition, (1)H NMR spectroscopy shows that La[N(SiMe3)2]3 is the active species involved in the substitution and that protonolysis of the amine, yielding La[NR(1)R(2)]3, lowers the reactivity.

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Determination of Hydrogen Peroxide on Modified Glassy Carbon Electrode by Polytetrakis(2-aminophenyl)porphyrin Nanowire

Cited by 17 publications

References 60 publications

Trace Oxygen Sensitive Material Based on Two Porphyrin Derivatives in a Heterodimeric Complex

Trace Oxygen Sensitive Material Based on Two Porphyrin Derivatives in a Heterodimeric Complex

Catalysis of Organic Processes by Metal Phenolates

Mild and Selective Activation and Substitution of Strong Aliphatic CF Bonds

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