Category: 1452-77-3

Lee, Cheng-Ting; Tsai, Chang-Che; Wu, Pei-Jhen; Yu, Bor-Yih; Lin, Shiang-Tai published the article 《Screening of CO2 utilization routes from process simulation: Design, optimization, environmental and techno-economic analysis》. Keywords: carbon dioxide utilization simulation optimization techno economic analysis.They researched the compound: Picolinamide( cas:1452-77-3 ).Application of 1452-77-3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1452-77-3) here.

This work aims at evaluating potential direct CO2 conversion processes through systematic screening and process simulation. Fifteen direct routes converting CO2 to carbonates or carbamates, with in situ chem. dehydration using 2-cyanopyridine (2-CP) are focused. The work covers an extensive examination (and supplement) on the phys. properties, selection of promising routes, process simulation, optimization, environmental, and techno-economic evaluation. Firstly, three promising routes were selected, producing di-Me carbonate (DMC), di-Pr carbonate (DPC), and Iso-Pr N-phenylcarbamate (IPPhCM), based on three criteria: azeotropic search, product selectivity and reacting conditions. Next, the corresponding processes were simulated, optimized, heat-integrated, and systematically compared with the previously-proposed di-Et carbonate (DEC) process through environmental and economic anal. From environmental anal., the CO2 emission rate (CO2-e, in kg/kg-product) was 0.067, 0.088, -0.040 and -0.154 for producing DMC, DPC, IPPhCM and DEC, resp. By reducing the excess ratio used for reaction (i.e. 2-CP/alc. or amine/alc.), the CO2-e improved to -0.122, -0.086, and -0.117 for producing DMC, DPC and IPPhCM, resp. Finally, the min. required selling prices (MRSP) at 15% internal rate of return (IRR) were determined, with the unit price of 2-CP, 2-picolinamide (2-PA), and the reactor residence time regarded as uncertainties. The MRSPs for DMC, DPC, IPPhCM and DEC are found in the range of 1.50-4.96, 2.29-4.24, 2.07-4.06 and 1.12-2.81 (all in USD/kg), resp. Future studies exploring the com. availability and the regeneration of 2-CP, and the feasibility of reducing the excess ratio and the reaction residence time are considered helpful.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 1452-77-3, is researched, SMILESS is O=C(N)C1=NC=CC=C1, Molecular C6H6N2OJournal, General Review, Article, Review, Dalton Transactions called Dipicolinamide and isophthalamide based fluorescent chemosensors: Recognition and detection of assorted analytes, Author is Kumar, Pramod; Kumar, Vijay; Gupta, Rajeev, the main research direction is dipicolinamide isophthalamide based fluorescent chemosensor review.Application of 1452-77-3.

A review. This perspective focuses on a variety of fluorescent receptors based on dipicolinamide and isophthalamide groups and their significant roles in the mol. recognition, sensing and detection of assorted analytes ranging from metal ions, anions, neutral mols., drugs and explosives. Both the “”turn-on”” and “”turn-off”” nature of sensing highlights noteworthy applications in many fields encompassing biol., medicinal, environmental and anal. disciplines.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

HPLC of Formula: 1452-77-3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Half-sandwich ruthenium(II) complexes containing biphenylamine based Schiff base ligands: Synthesis, structure and catalytic activity in amidation of various aldehydes. Author is Nagalakshmi, Veerasamy; Nandhini, Raja; Brindha, Veerappan; Krishnamoorthy, Bellie Sundaram; Balasubramani, Kasthuri.

New half-sandwich ruthenium (II) complexes [(η6-p-cymene)Ru (L1-3)Cl] (1-3) containing biphenylamine based Schiff base ligands (HL1-3) have been synthesized and characterized by anal. and spectroscopic methods. Addnl., the solid state structure of 2 has been determined by single crystal X-ray diffraction study. The complex 2 serves as a catalyst for the amidation of various aldehydes to amides in good yield.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 1452-77-3, is researched, SMILESS is O=C(N)C1=NC=CC=C1, Molecular C6H6N2OJournal, Article, International Journal of Molecular Sciences called Evaluation of radioiodinated fluoronicotinamide/fluoropicolinamide-benzamide derivatives as theranostic agents for melanoma, Author is Chen, Chao-Cheng; Chen, Yang-Yi; Lo, Yi-Hsuan; Lin, Ming-Hsien; Chang, Chih-Hsien; Chen, Chuan-Lin; Wang, Hsin-Ell; Wu, Chun-Yi, the main research direction is melanoma theranostic agent radioiodinated fluoronicotinamide fluoropicolinamide benzamide; 131I-iodofluoronicotiamide benzamide (131I-IFNABZA); 131I-iodofluoropicolinamide benzamide (131I-IFPABZA); melanoma; theranostic agent.Application In Synthesis of Picolinamide.

Malignant melanoma is the most harmful type of skin cancer and its incidence has increased in this past decade. Early diagnosis and treatment are urgently desired. In this study, we conjugated picolinamide/nicotinamide with the pharmacophore of 131I-MIP-1145 to develop 131I-iodofluoropicolinamide benzamide (131I-IFPABZA) and 131I-iodofluoronicotiamide benzamide (131I-IFNABZA) with acceptable radiochem. yield (40 ± 5%) and high radiochem. purity (>98%). We also presented their biol. characteristics in melanoma-bearing mouse models. 131I-IFPABZA (Log P = 2.01) was more lipophilic than 131I-IFNABZA (Log P = 1.49). B16F10-bearing mice injected with 131I-IFNABZA exhibited higher tumor-to-muscle ratio (T/M) than those administered with 131I-IFPABZA in planar γ-imaging and biodistribution studies. However, the imaging of 131I-IFNABZA- and 131I-IFPABZA-injected mice only showed marginal tumor uptake in A375 amelanotic melanoma-bearing mice throughout the experiment period, indicating the high binding affinity of these two radiotracers to melanin. Comparing the radiation-absorbed dose of 131I-IFNABZA with the melanin-targeted agents reported in the literature, 131I-IFNABZA exerts lower doses to normal tissues on the basis of similar tumor dose. Based on the in vitro and in vivo studies, we clearly demonstrated the potential of using 131I-IFNABZA as a theranostic agent against melanoma.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Picolinamide(SMILESS: O=C(N)C1=NC=CC=C1,cas:1452-77-3) is researched.Computed Properties of C12H11NO. The article 《Development of radiofluorinated nicotinamide/picolinamide derivatives as diagnostic probes for the detection of melanoma》 in relation to this compound, is published in International Journal of Molecular Sciences. Let’s take a look at the latest research on this compound (cas:1452-77-3).

Regarding the increased incidence and high mortality rate of malignant melanoma, practical early-detection methods are essential to improve patients′ clin. outcomes. In this study, we successfully prepared novel picolinamide-benzamide (18F-FPABZA) and nicotinamide-benzamide (18F-FNABZA) conjugates and determined their biol. characteristics. The radiochem. yields of 18F-FPABZA and 18F-FNABZA were 26 ± 5% and 1 ± 0.5%, resp. 18F-FPABZA was more lipophilic (log P = 1.48) than 18F-FNABZA (log P = 0.68). The cellular uptake of 18F-FPABZA in melanotic B16F10 cells was relatively higher than that of 18F-FNABZA at 15 min post-incubation. However, both radiotracers did not retain in amelanotic A375 cells. The tumor-to-muscle ratios of 18F-FPABZA-injected B16F10 tumor-bearing mice increased from 7.6 ± 0.4 at 15 min post-injection (p.i.) to 27.5 ± 16.6 at 3 h p.i., while those administered with 18F-FNABZA did not show a similarly dramatic increase throughout the exptl. period. The results obtained from biodistribution studies were consistent with those derived from microPET imaging. This study demonstrated that 18F-FPABZA is a promising melanin-targeting positron emission tomog. (PET) probe for melanotic melanoma.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, International Journal of Research in Chemistry and Environment called Quantum mechanical study of coordination ability of amides using eigen value parameters, Author is Ahmad, Kaleem; Dixit, Vivek, which mentions a compound: 1452-77-3, SMILESS is O=C(N)C1=NC=CC=C1, Molecular C6H6N2O, Related Products of 1452-77-3.

It is well known fact that the bonding occurs at oxygen atom in the Amides compounds In order to prove this fact we have considered eighteen Amides compounds Present study deals to calculate their Eigen value using Quantum Mech. descriptors via Cache software. With the help of Eigen values, the concentrations of electrons on oxygen and nitrogen atoms of Amides compounds have been calculated In Amides compounds, the sum of contributions of p-orbitals of oxygen atom in the formation of MOs is smaller as compared to other atoms. This indicates that the bonding takes place at oxygen atom.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Quality Control of Picolinamide. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Evaluation of radioiodinated fluoronicotinamide/fluoropicolinamide-benzamide derivatives as theranostic agents for melanoma. Author is Chen, Chao-Cheng; Chen, Yang-Yi; Lo, Yi-Hsuan; Lin, Ming-Hsien; Chang, Chih-Hsien; Chen, Chuan-Lin; Wang, Hsin-Ell; Wu, Chun-Yi.

Malignant melanoma is the most harmful type of skin cancer and its incidence has increased in this past decade. Early diagnosis and treatment are urgently desired. In this study, we conjugated picolinamide/nicotinamide with the pharmacophore of 131I-MIP-1145 to develop 131I-iodofluoropicolinamide benzamide (131I-IFPABZA) and 131I-iodofluoronicotiamide benzamide (131I-IFNABZA) with acceptable radiochem. yield (40 ± 5%) and high radiochem. purity (>98%). We also presented their biol. characteristics in melanoma-bearing mouse models. 131I-IFPABZA (Log P = 2.01) was more lipophilic than 131I-IFNABZA (Log P = 1.49). B16F10-bearing mice injected with 131I-IFNABZA exhibited higher tumor-to-muscle ratio (T/M) than those administered with 131I-IFPABZA in planar γ-imaging and biodistribution studies. However, the imaging of 131I-IFNABZA- and 131I-IFPABZA-injected mice only showed marginal tumor uptake in A375 amelanotic melanoma-bearing mice throughout the experiment period, indicating the high binding affinity of these two radiotracers to melanin. Comparing the radiation-absorbed dose of 131I-IFNABZA with the melanin-targeted agents reported in the literature, 131I-IFNABZA exerts lower doses to normal tissues on the basis of similar tumor dose. Based on the in vitro and in vivo studies, we clearly demonstrated the potential of using 131I-IFNABZA as a theranostic agent against melanoma.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Xu, Xiaowen; Hoogenboom, Richard; Van Hecke, Kristof published the article 《Crystal structures of three N-(pyridine-2-carbonyl)pyridine-2-carboxamides as potential ligands for supramolecular chemistry》. Keywords: crystal mol structure hydrogen bond length; N-(pyridine-2-carbon­yl)pyridine-2-carboxamide; crystal structure; fluorine moieties; supra­molecular chemistry.They researched the compound: Picolinamide( cas:1452-77-3 ).Computed Properties of C6H6N2O. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1452-77-3) here.

The synthesis and single-crystal X-ray structures of three N-(pyridine-2-carbonyl)pyridine-2-carboxamide imides, with or without F atoms on the 3-position of the pyridine rings are reported, namely, N-(pyridine-2-carbonyl)pyridine-2-carboxamide, C12H9N3O2 (1), N-(3-fluoropyridine-2-carbonyl)pyridine-2-carboxamide, C12H8FN3O2 (2), and 3-fluoro-N-(3-fluoropyridine-2-carbonyl)pyridine-2-carboxamide, C12H7F2N3O2 (3). The above-mentioned compounds were synthesized by a mild, general procedure with an excellent yield, providing straightforward access to sym. and/or asym. heterocyclic ureas. The crystal structures of 1 and 2 are isomorphous, showing similar packing arrangements, i.e. double layers of parallel (face-to-face) mols. alternating with analogous, but perpendicularly oriented, double layers. In contrast, the crystal structure of 3, containing a fluoro- group at the 3-position of both pyridine rings, shows mol. arrangements in a longitudinal, tubular manner along the c axis, with the aromatic pyridine and carbonyl/fluorine moieties facing towards each other.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Application of 1452-77-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Aqueous-Phase Nitrile Hydration Catalyzed by an In Situ Generated Air-Stable Ruthenium Catalyst. Author is Ounkham, Whalmany L.; Weeden, Jason A.; Frost, Brian J..

RuCl2(PTA)4 (PTA=1,3,5-triaza-7-phosphaadamantane) is an active, recyclable, air-stable, aqueous-phase nitrile hydration catalyst. The development of an in situ generated aqueous-phase nitrile hydration catalyst (RuCl3·3 H2O + 6 equiv PTA) is reported. The activity of the in situ catalyst is comparable to RuCl2(PTA)4. The effects of [PTA] on the activity of the reaction were investigated: the catalytic activity, in general, increases as the pH goes up, which shows a pos. correlation with [PTA]. The pH effects were further explored for both the in situ and RuCl2(PTA)4 catalyzed reaction in phosphate buffer solutions with particular attention given to pH 6.8 buffer. Increased catalytic activity was observed at pH 6.8 vs. water for both systems with turnover frequency (TOF) up to 135 h-1 observed for RuCl2(PTA)4 and 64 h-1 for the in situ catalyst. Catalyst loading down to 0.001 mol % was examined with turnover numbers as high as 22 000 reported. Similar to the preformed catalyst, RuCl2(PTA)4, the in situ catalyst could be recycled more than five times without significant loss of activity from either water or pH 6.8 buffer.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Related Products of 1452-77-3. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Design of organoruthenium complexes for nanoparticle functionalization.

In recent years, extensive research efforts have been focused on loading metal complexes onto macromol. systems such as nanoparticles. We report a ligand with a catechol group based on a picolinamide which allows for coordination to organoruthenium moieties while the catechol group remains available for loading on nanoparticles as delivery vehicles towards tumors. All the compounds were characterized with standard anal. methods and the mol. structure of the ligand 1, and its Ru complexes 1a and 1b were determined by X-ray diffraction anal. The crystal structure of 1a and 1b showed pseudo-tetrahedral geometry of the Ru center with “”piano-stool”” conformation and 1 coordinated as an N,O-bidentate ligand, however, the latter depending on the reaction conditions employed. The Ru complexes 1a-1c were effectively loaded on magnetite nanoparticles as characterized by inductively-coupled plasma mass spectrometry (ICP-MS), transmission electron microscopy (TEM) and Fourier transform IR spectroscopy (FTIR).

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem