Category: 614-18-6

An article Azine Activation via Silylium Catalysis WOS:000651748000011 published article about PYRIDINES; SUBSTITUTION; NUCLEOPHILES; HETEROCYCLES; DERIVATIVES in [Obradors, Carla; List, Benjamin] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany in 2021, Cited 51. Recommanded Product: Ethyl nicotinate. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Practical, efficient, and general methods for the diversification of N-heterocycles have been a recurrent goal in chemical synthesis due to the ubiquitous influence of these motifs within bioactive frameworks. Here, we describe a direct, catalytic, and selective functionalization of azines via silylium activation. Our catalyst design enables mild conditions and a remarkable functional group tolerance in a one-pot setup.

About Ethyl nicotinate, If you have any questions, you can contact Obradors, C; List, B or concate me.. Recommanded Product: Ethyl nicotinate

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Wang, XJ; Guo, MY; Song, HL; Meng, Q; Guan, XS in ELSEVIER SCI LTD published article about in [Wang, Xiaojun; Guo, Mengyao; Song, Huanlu; Meng, Qi] Beijing Technol & Business Univ BTBU, Beijing Adv Innovat Ctr Food Nutr & Human Hlth, Beijing Res Ctr Food Addit Engn Technol, Lab Mol Sensory Sci, Beijing 100048, Peoples R China; [Guan, Xiaosheng] J & X Technol Shanghai Co Ltd, Room 1034,1599 Jungong Rd, Shanghai 200438, Peoples R China in 2021, Cited 28. Recommanded Product: Ethyl nicotinate. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Activity of odor compounds of soy sauces has not been fully determined so far. Herein, a new switchable GC/ GC x GC-olfactometry-mass spectrometry system for simultaneous GC x GC-MS analysis and sniffing of each odor-active substance through a single injection was used for the aroma extract dilution analysis of five regular high-salt liquid-state soy sauces (HLS). Methional, maltol, guaiacol, 4-ethylguaiacol, 2-acetylpyrrole, 2-acetylfuran, 2-phenylethanol, and 4-hydroxy-2,5-dimethyl-3(2H)-furanone showed high flavor dilution (FD) factors. The FD factors of all odor-active compounds in different odor attributes were summed up (score) to evaluate the odor characteristics of the samples. Cooked potato-like odor was the most important characteristic. The difference in the odor characteristics were mainly reflected in the balance of caramel-like/sweet, roasted/roasted nut-like, spicy/burnt, and unpleasant odor intensity; the fruity odor intensity was the weakest. This study will provide a better understanding of the odor characteristics and key odor-active compounds in Chinese regular commercial HLS.

Recommanded Product: Ethyl nicotinate. About Ethyl nicotinate, If you have any questions, you can contact Wang, XJ; Guo, MY; Song, HL; Meng, Q; Guan, XS or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Patel, KPP; Gayakwad, EM; Shankarling, GS in [Patel, Khushbu P.; Gayakwad, Eknath M.; Shankarling, Ganapati S.] Inst Chem Technol, Dept Dyestuff Technol, NP Marg, Mumbai 400019, Maharashtra, India published Graphene oxide: a convenient metal-free carbocatalyst for facilitating amidation of esters with amines in 2020, Cited 49. Category: pyridine-derivatives. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6.

Herein, we report a graphene oxide (GO) catalyzed condensation of non-activated esters and amines, that can enable diverse amides to be synthesized from abundant ethyl esters forming only volatile alcohol as a by-product. GO accelerates ester to amide conversion in the absence of any additives, unlike other catalysts. A wide range of ester and amine substrates are screened to yield the respective amides in good to excellent yields. The improved catalytic activity can be ascribed to the oxygenated functionalities present on the graphene oxide surface which forms H-bonding with the reactants accelerating the reaction. Improved yields and a wide range of functional group tolerance are some of the important features of the developed protocol.

Category: pyridine-derivatives. About Ethyl nicotinate, If you have any questions, you can contact Patel, KPP; Gayakwad, EM; Shankarling, GS or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

SDS of cas: 614-18-6. Emam, SM; Tolan, DA; El-Nahas, AM in [Emam, Sanaa M.; Tolan, Dina A.; El-Nahas, Ahmed M.] Menoufia Univ, Fac Sci, Chem Dept, Shibin Al Kawm 32512, Egypt; [Tolan, Dina A.] Prince Sattam Bin Abdulaziz Univ, Coll Sci & Humanities Al Kharj, Dept Chem, Al Kharj 11942, Saudi Arabia published Synthesis, structural, spectroscopic, and thermal studies of some transition-metal complexes of a ligand containing the amino mercapto triazole moiety in 2020, Cited 84. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6.

A new series of transition-metal complexes of Schiff base ligand containing the amino mercapto triazole moiety (HL) was prepared. The Schiff base and its metal complexes were elucidated by different spectroscopic techniques (infrared [IR], H-1 nuclear magnetic resonance, UV-Visible, mass, and electron spin resonance [ESR]), and magnetic moment and thermal studies. Quantum chemical calculations have been carried out to study the structure of the ligand and some of its complexes. The IR spectra showed that the ligand is chelated with the metal ion in a neutral, tridentate, and bidentate manner using NOS and NO donors in complexes 1-6, 10-12, and 7 and 8, respectively, whereas it behaves in a monobasic tridentate fashion using NOS donor sites in copper(II) nitrate complex (9). The magnetic moment and electronic spectra data revealed octahedral and square pyramidal geometries for complexes 2, 11, 12, and 5-8 and 10, respectively. However, the other complexes were found to have tetrahedral (4), trigonal bipyramidal (1 and 3), and square planar (9) structures. Thermal studies revealed that the chelates with different crystallized solvents undergo different types of interactions and the decomposition pathway ended with the formation of metal oxygen (MO) and metal sulfur (MS) as final products. The ESR spectrum of copper(II) complex 10 is axial in nature with hyperfine splitting with B-2(1g) as a ground state. By contrast, complexes 7 and 8 undergo distortion around the Cu(II) center, affording rhombic ESR spectra. The HL ligand and some of its complexes were screened against two bacterial species. Data showed that complex 12 demonstrated a better antibacterial activity than HL ligand and other chelates.

About Ethyl nicotinate, If you have any questions, you can contact Emam, SM; Tolan, DA; El-Nahas, AM or concate me.. SDS of cas: 614-18-6

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Name: Ethyl nicotinate. Authors Wang, XJ; Guo, MY; Song, HL; Meng, Q; Guan, XS in ELSEVIER SCI LTD published article about in [Wang, Xiaojun; Guo, Mengyao; Song, Huanlu; Meng, Qi] Beijing Technol & Business Univ BTBU, Beijing Adv Innovat Ctr Food Nutr & Human Hlth, Beijing Res Ctr Food Addit Engn Technol, Lab Mol Sensory Sci, Beijing 100048, Peoples R China; [Guan, Xiaosheng] J & X Technol Shanghai Co Ltd, Room 1034,1599 Jungong Rd, Shanghai 200438, Peoples R China in 2021, Cited 28. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Activity of odor compounds of soy sauces has not been fully determined so far. Herein, a new switchable GC/ GC x GC-olfactometry-mass spectrometry system for simultaneous GC x GC-MS analysis and sniffing of each odor-active substance through a single injection was used for the aroma extract dilution analysis of five regular high-salt liquid-state soy sauces (HLS). Methional, maltol, guaiacol, 4-ethylguaiacol, 2-acetylpyrrole, 2-acetylfuran, 2-phenylethanol, and 4-hydroxy-2,5-dimethyl-3(2H)-furanone showed high flavor dilution (FD) factors. The FD factors of all odor-active compounds in different odor attributes were summed up (score) to evaluate the odor characteristics of the samples. Cooked potato-like odor was the most important characteristic. The difference in the odor characteristics were mainly reflected in the balance of caramel-like/sweet, roasted/roasted nut-like, spicy/burnt, and unpleasant odor intensity; the fruity odor intensity was the weakest. This study will provide a better understanding of the odor characteristics and key odor-active compounds in Chinese regular commercial HLS.

Name: Ethyl nicotinate. About Ethyl nicotinate, If you have any questions, you can contact Wang, XJ; Guo, MY; Song, HL; Meng, Q; Guan, XS or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Name: Ethyl nicotinate. Authors Wang, XJ; Guo, MY; Song, HL; Meng, Q; Guan, XS in ELSEVIER SCI LTD published article about in [Wang, Xiaojun; Guo, Mengyao; Song, Huanlu; Meng, Qi] Beijing Technol & Business Univ BTBU, Beijing Adv Innovat Ctr Food Nutr & Human Hlth, Beijing Res Ctr Food Addit Engn Technol, Lab Mol Sensory Sci, Beijing 100048, Peoples R China; [Guan, Xiaosheng] J & X Technol Shanghai Co Ltd, Room 1034,1599 Jungong Rd, Shanghai 200438, Peoples R China in 2021, Cited 28. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Activity of odor compounds of soy sauces has not been fully determined so far. Herein, a new switchable GC/ GC x GC-olfactometry-mass spectrometry system for simultaneous GC x GC-MS analysis and sniffing of each odor-active substance through a single injection was used for the aroma extract dilution analysis of five regular high-salt liquid-state soy sauces (HLS). Methional, maltol, guaiacol, 4-ethylguaiacol, 2-acetylpyrrole, 2-acetylfuran, 2-phenylethanol, and 4-hydroxy-2,5-dimethyl-3(2H)-furanone showed high flavor dilution (FD) factors. The FD factors of all odor-active compounds in different odor attributes were summed up (score) to evaluate the odor characteristics of the samples. Cooked potato-like odor was the most important characteristic. The difference in the odor characteristics were mainly reflected in the balance of caramel-like/sweet, roasted/roasted nut-like, spicy/burnt, and unpleasant odor intensity; the fruity odor intensity was the weakest. This study will provide a better understanding of the odor characteristics and key odor-active compounds in Chinese regular commercial HLS.

Name: Ethyl nicotinate. About Ethyl nicotinate, If you have any questions, you can contact Wang, XJ; Guo, MY; Song, HL; Meng, Q; Guan, XS or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Fairley, M; Bole, LJ; Mulks, FF; Main, L; Kennedy, AR; O’Hara, CT; Garcia-Alvarez, J; Hevia, E in ROYAL SOC CHEMISTRY published article about DEEP EUTECTIC SOLVENTS; POLAR ORGANOMETALLIC COMPOUNDS; EXTERNAL CALIBRATION CURVES; CHEMISTRY RESEARCH AREAS; CHEMOSELECTIVE ADDITION; COUPLING REAGENTS; BOND FORMATION; DOSY-NMR; REACTIVITY; PEPTIDE in [Fairley, Michael; Mulks, Florian F.; Main, Laura; Kennedy, Alan R.; O’Hara, Charles T.; Hevia, Eva] Univ Strathclyde, Dept Pure & Appl Chem, Glasgow G1 1XL, Lanark, Scotland; [Bole, Leonie J.; Mulks, Florian F.; Hevia, Eva] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland; [Garcia-Alvarez, Joaquin] Univ Oviedo, Lab Compuestos Organomet & Catalisis, Ctr Innovac Quim Avanzada ORFEO CINQA, Dept Quim Organ & Inorgan IUQOEM,Fac Quim,Unidad, E-33071 Oviedo, Spain in 2020, Cited 97. Computed Properties of C8H9NO2. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Lithium amides constitute one of the most commonly used classes of reagents in synthetic chemistry. However, despite having many applications, their use is handicapped by the requirement of low temperatures, in order to control their reactivity, as well as the need for dry organic solvents and protective inert atmosphere protocols to prevent their fast decomposition. Advancing the development of air- and moisture-compatible polar organometallic chemistry, the chemoselective and ultrafast amidation of esters mediated by lithium amides is reported. Establishing a novel sustainable access to carboxamides, this has been accomplishedviadirect C-O bond cleavage of a range of esters using glycerol or 2-MeTHF as a solvent, in air. High yields and good selectivity are observed while operating at ambient temperature, without the need for transition-metal mediation, and the protocol extends to transamidation processes. Pre-coordination of the organic substrate to the reactive lithium amide as a key step in the amidation processes has been assessed, enabling the structural elucidation of the coordination adduct [{Li(NPh2)(O=CPh(NMe2))}(2)] (8) when toluene is employed as a solvent. No evidence for formation of a complex of this type has been found when using donor THF as a solvent. Structural and spectroscopic insights into the constitution of selected lithium amides in 2-MeTHF are provided that support the involvement of small kinetically activated aggregates that can react rapidly with the organic substrates, favouring the C-O bond cleavage/C-N bond formation processes over competing hydrolysis/degradation of the lithium amides by moisture or air.

Computed Properties of C8H9NO2. About Ethyl nicotinate, If you have any questions, you can contact Fairley, M; Bole, LJ; Mulks, FF; Main, L; Kennedy, AR; O’Hara, CT; Garcia-Alvarez, J; Hevia, E or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Recommanded Product: Ethyl nicotinate. In 2021 J AM CHEM SOC published article about PYRIDINES; SUBSTITUTION; NUCLEOPHILES; HETEROCYCLES; DERIVATIVES in [Obradors, Carla; List, Benjamin] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany in 2021, Cited 51. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6.

Practical, efficient, and general methods for the diversification of N-heterocycles have been a recurrent goal in chemical synthesis due to the ubiquitous influence of these motifs within bioactive frameworks. Here, we describe a direct, catalytic, and selective functionalization of azines via silylium activation. Our catalyst design enables mild conditions and a remarkable functional group tolerance in a one-pot setup.

About Ethyl nicotinate, If you have any questions, you can contact Obradors, C; List, B or concate me.. Recommanded Product: Ethyl nicotinate

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Proximity Effect in Uranyl Coordination of the Cucurbit[6]uril-Bipyridinium Pseudorotaxane Ligand for Promoting Host-Guest Synergistic Chelating WOS:000675430900047 published article about METAL-ORGANIC FRAMEWORK; POLYROTAXANES; INCLUSION; DESIGN in [Li, Fei-Ze; Liu, Ning] Sichuan Univ, Inst Nucl Sci & Technol, Minist Educ, Key Lab Radiat Phys & Technol, Chengdu 610064, Peoples R China; [Li, Fei-Ze; Geng, Jun-Shan; Hu, Kong-Qiu; Yu, Ji-Pan; Chai, Zhi-Fang; Mei, Lei; Shi, Wei-Qun] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China; [Chai, Zhi-Fang] Chinese Acad Sci, Ningbo Inst Ind Technol, Engn Lab Adv Energy Mat, Ningbo 315201, Zhejiang, Peoples R China in 2021, Cited 43. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6. HPLC of Formula: C8H9NO2

behavior of cucurbituril-bipyridinium pseudorotaxane ligand by utilizing meta-functionalized bipyridinium dicarboxylate guest. A tailored pseudorotaxane precursor involving 1,1′-(hexane-1,6-diyl)bis(3-cyanopyridin-1-ium) bromide (C6BPCN3) and cucurbit[6]uril (CB[6]) has designed and synthesized. Through in situ hydrolysis of the pseudorotaxane ligands and their coordination assembly with uranyl cations, seven new uranyl-rotaxane coordination polymers URCP1-URCP7 have been obtained under hydrothermal conditions in the presence of different anions. It is demonstrated that the variation of carboxylate groups from para- to meta-position greatly affected the coordination behaviors of the metafunctionalized pseudorotaxane linkers, which are enriched from simple guest-only binding to host-guest simultaneous coordination and synergistic chelating. This effective regulation on uranyl coordination of supramolecular pseudorotaxane can be attributed to the proximity effect, which refers to the meta-position carboxyl group being spatially closer to the portal carbonyl group of CB[6]. Moreover, by combining other regulation methods such as introducing competing counterions and modulating solution acidity, the nuclearity of the uranyl center and the coordination patterns of the pseudorotaxane ligand can be diversely tuned, which subsequently exert great influence on the final dimensionality of resultant uranyl compounds. This work presents a large diversity of uranyl-based coordination polyrotaxane compounds with fascinating mechanically interlocked components and, most importantly, provides a feasible approach to adjust and control the metal coordination behavior of the pseudorotaxane ligand that might expand the scope of application of such supramolecular ligands.

About Ethyl nicotinate, If you have any questions, you can contact Li, FZ; Geng, JS; Hu, KQ; Yu, JP; Liu, N; Chai, ZF; Mei, L; Shi, WQ or concate me.. HPLC of Formula: C8H9NO2

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Chen, ZP; Tang, HQ; Ou, CR; Xie, C; Cao, JX; Zhang, X in WILEY published article about in [Chen, Zhipeng; Ou, Changrong; Xie, Cheng; Cao, Jinxuan; Zhang, Xin] Ningbo Univ, Coll Food & Pharmaceut Sci, Dept Food Sci & Engn, Ningbo, Peoples R China; [Tang, Haiqing] Zhejiang Pharmaceut Coll, Fac Food Sci, Dept Food Nutr & Testing, Ningbo, Peoples R China in 2021, Cited 153. Formula: C8H9NO2. The Name is Ethyl nicotinate. Through research, I have a further understanding and discovery of 614-18-6

Volatiles of four zaoyu (Chinese traditional fermented fish) products prepared from different species of marine fish were analyzed by headspace solid-phase micro-extraction (HS-SPME) and comprehensive two-dimensional gas chromatography in combination with time-of-flight mass spectrometry (GC x GC/TOFMS). First, a 50/30 mu m DVB/CAR/PDMS was used and the influence of several parameters on the efficiency of HS-SPME such as extraction temperature, time, salting-out effect, and stirring were optimized, odor activity values (OAVs) of volatile compounds were computed based on the threshold values of aroma constituents; the characteristic volatiles and their odor characteristics of the four zaoyu were investigated. The results demonstrated that the most effective extraction of the analytes was obtained with a 40 min extraction at 50 degrees C with the addition of 20% NaCl and stirring at 300 r/min. Under these conditions, a total of 288 volatile components were tentatively identified based on mass spectra and comparison of linear retention indices in the four zaoyu products. Authenticated compounds included aldehydes, esters, alcohols, ketones, furans, lactones, nitrogen compounds, sulfur compounds, terpenes, phenols, etc. Among the identified types of volatile compounds, the number of esters is the largest, whereas the content of aldehydes is the highest. The results of OAVs comparisons proved that both aldehydes and esters provided the most significant contribution to the aromas of zaoyu, and each zaoyu product had its own unique active flavor components. Moreover, the OAVs of active flavor compounds common to the four examined zaoyu varied significantly. Our results substantiated that GC x GC/TOFMS could provide a robust technical means to understand the flavor characteristics of zaoyu and allow us to better evaluate and improve the flavor quality of the products with complex food matrix like zaoyu. Practical applications The method present in this research is suitable to characterize the volatile constituents of aquatic products, and could also be used for component characterization of similar complex samples such as fermented fish and foods. Understanding the key aroma compounds of fermented fish and its formation mechanism could provide a guide of process optimization and flavor regulation, contributing to further studies related to volatile compounds in the field of food flavor analysis.

Formula: C8H9NO2. About Ethyl nicotinate, If you have any questions, you can contact Chen, ZP; Tang, HQ; Ou, CR; Xie, C; Cao, JX; Zhang, X or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem