Author: tianli

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called The reduction of pyridine derivatives with lithium aluminum hydride, published in 1953, which mentions a compound: 1195-58-0, mainly applied to , Safety of Pyridine-3,5-dicarbonitrile.

When pyridine derivatives (I) with CO2Et or CN groups at the 3- and 5-positions are treated with LiAlH4 (II) the ring system is attacked first; when the 2-, 4-, and 6-positions are substituted, the functional group are reduced. The reductions are carried out by adding a large excess of II in ether to the I in absolute ether with stirring and ice-cooling, treating the mixture with saturated NH4Cl solution, and evaporating the washed ether solution Reduction of 5 g. di-Et 2,6-lutidine-3,5-dicarboxylate in 50 cc. ether with 780 mg. II in 40 cc. ether gives 40% Et 3-hydroxymethyl-2,6-lutidine-5-carboxylate, m. 100-1°; when the mixture is refluxed 2 hrs. 65% 3,5-bis(hydroxymethyl)-2,6-lutidine, m. 141-2°, is obtained. Reduction of di-Me dinicotinate gives 50% di-Me 1,4-dihydrodinicotinate, m. 150-60°, λmaximum 220, 375 mμ (MeOH). Reduction of di-Me 2-methyl-dinicotinate also gives a dihydro derivative, b0.02 115-20°, yellow needles, m. 126°, λmaximum 220, 375 mμ (MeOH). Reduction of 10 g. 2-chloropyridine (III) with 1 g. II at 0° gives unchanged III. Reduction of 1 g. Et picolinate gives 2-pyridine methanol (picrate m. 159°). Reduction of Et 2-pyridyl-acetate gives 2-pyridineëthanol, b15 120° (picrate, m. 120°). Refluxing 50 g. dinicotinic acid with 150 cc. SOCl2 15 hrs. and treating the acid chloride with NH4OH give 26 g. diamide, m. 302°, which, warmed in 130 cc. C5H5N with 19 cc. POCl3 3 hrs at 60°, yields 15 g. dinitrile (IV), m. 113° after sublimation at 70°/1 mm. Reduction of 1 g. IV in 20 cc. ether with 300 mg. II in 10 cc. ether gives 1,4-dihydrodinicotinonitrile, yellow crystals, m. 197°, λmaximum 360 mμ (MeOH). Similar reduction of 0.43 g. 2,6-lutidine-3,5-dicarbonitrile gives the 1,4-dihydro derivative, yellow crystals, m. 225°, λmaximum 362.5 mμ (MeOH). Catalytic hydrogenation of 0.5 g. IV in 20 cc. MeOH 3 hrs. with 50 mg. PtO2, 0.5 g., gives a dihydro derivative with λmax. 360 mμ which reduces neutral AgNO3. Adding (0.5 hr.) 6.5 g. II in 300 cc. ether to 46 g. Me nicotinate in 300 cc. ether at 0°, decomposing the mixture with NH4Cl, and distilling the residue of the ether extract give 31.3 g. 3-pyridine methanol, b0.1 110° (picrate, m. 158-60°). The difference in the behavior of the pyridine esters and nitriles toward II is explained as resulting from the different polarization of the pyridine rings in these compounds

Compound(1195-58-0)Safety of Pyridine-3,5-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Pyridine-3,5-dicarbonitrile), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

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, Article, Research Support, N.I.H., Extramural, Bioorganic & Medicinal Chemistry Letters called Optimization of pyrimidinyl- and triazinyl-amines as non-nucleoside inhibitors of HIV-1 reverse transcriptase, Author is Thakur, Vinay V.; Kim, Joseph T.; Hamilton, Andrew D.; Bailey, Christopher M.; Domaoal, Robert A.; Wang, Ligong; Anderson, Karen S.; Jorgensen, William L., which mentions a compound: 16588-26-4, SMILESS is BrC1=C(C=CC(=C1)[N+](=O)[O-])Cl, Molecular C6H3BrClNO2, Computed Properties of C6H3BrClNO2.

Non-nucleoside inhibitors of HIV-1 reverse transcriptase are being pursued through synthesis and assaying for anti-viral activity. Following computational analyses, the focus has been on the motif Het-NH-Ph-U, where Het is an aromatic heterocycle and U is an unsaturated, hydrophobic group. Previous investigations with Het = 2-thiazoyl and 2-pyrimidinyl are extended here to triazinyl derivatives The result is several NNRTIs in the 2-20 nM range with negligible cytotoxicity and auspicious predicted pharmacol. properties.

Compound(16588-26-4)Computed Properties of C6H3BrClNO2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(3-Bromo-4-chloronitrobenzene), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Quality Control of Pyridine-3,5-dicarbonitrile. 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: Pyridine-3,5-dicarbonitrile, is researched, Molecular C7H3N3, CAS is 1195-58-0, about Substituted thieno[2,3-d]pyrimidines as adenosine A2A receptor antagonists.

A novel series of benzyl substituted thieno[2,3-d]pyrimidines, e.g. I, were identified as potent A2A receptor antagonists. Several five- and six-membered heterocyclic replacements for the optimized methylfuran were explored. Select compounds effectively reverse catalepsy in mice when dosed orally.

Compound(1195-58-0)Quality Control of Pyridine-3,5-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Pyridine-3,5-dicarbonitrile), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Reference of Pyridine-3,5-dicarbonitrile. 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: Pyridine-3,5-dicarbonitrile, is researched, Molecular C7H3N3, CAS is 1195-58-0, about Photochemistry of matrix-isolated 5-cyano-2H-pyran-2-one (δ-cyano-α-pyrone) and cyanocyclobuta-1,3-diene. Author is Menke, Jessica L.; McMahon, Robert J..

Matrix-isolation photochem. (λ > 299 nm; Ar, 10 K) of 5-cyano-2H-pyran-2-one (5, δ-cyano-α-pyrone) shows complete conversion to a mixture of several ring-opened ketene isomers (6) and a ring-closed Dewar lactone (7), as detected by IR spectroscopy. Subsequent irradiation (λ > 200 nm) causes decarboxylation of the Dewar lactone (7) to produce cyanocyclobuta-1,3-diene (8). Continued irradiation (λ > 200 nm) results in the photodecomposition of cyanocyclobuta-1,3-diene (8) to cyanoacetylene and acetylene. 4-Cyanopyridine (10) was explored as an alternative photochem. precursor to cyanocyclobuta-1,3-diene (8). It was found, however, that 10 does not exhibit observable photochem. under our irradiation conditions.

Compound(1195-58-0)Reference of Pyridine-3,5-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Pyridine-3,5-dicarbonitrile), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Safety of (5aS,10bR)-2-(2,6-Diethylphenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate. 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: (5aS,10bR)-2-(2,6-Diethylphenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate, is researched, Molecular C22H24BF4N3O, CAS is 1787246-78-9, about Enantioselective Medium-Ring Lactone Synthesis through an NHC-Catalyzed Intramolecular Desymmetrization of Prochiral 1,3-Diols. Author is Wu, Zijun; Wang, Jian.

A highly enantioselective intramol. annulation reaction of 1,3-diols catalyzed by a triazolium N-heterocyclic carbene (NHC) precatalyst is disclosed, affording the corresponding medium-sized lactones in moderate to good yields with high enantioselectivities. It is worth noting that this compatible catalytic system was successfully applied to assemble a broad range of chiral medium-sized lactones, including ones with eight-, nine-, ten-, eleven-, and twelve-membered rings.

Compound(1787246-78-9)Safety of (5aS,10bR)-2-(2,6-Diethylphenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate received a lot of attention, and I have introduced some compounds in other articles, similar to this compound((5aS,10bR)-2-(2,6-Diethylphenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

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: 12080-32-9, is researched, SMILESS is C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-], Molecular C8H12Cl2PtJournal, Synlett called Confining the Inner Space of Strained Carbon Nanorings, Author is Grabicki, Niklas; Dumele, Oliver, the main research direction is cyclopyrenylene macrocycle confining inner space strained carbon nanoring preparation; crystal mol structure cyclopyrenylene macrocycle carbon nanoring.Synthetic Route of C8H12Cl2Pt.

Strained aromatic macrocycles based on cycloparaphenylenes (CPPs) are the shortest repeating units of armchair single-walled carbon nanotubes. Since the development of several new synthetic methodologies for accessing these structures, their properties have been extensively studied. Besides the fundamental interest in these novel mol. scaffolds, their application in the field of materials science is an ongoing topic of research. Most of the reported CPP-type macrocycles display strong binding toward fullerenes, due to the perfect match between the convex and concave π-surfaces of fullerenes and CPPs, resp. Highly functionalized CPP derivatives capable of supramol. binding with other mols. are rarely reported. The synthesis of highly functionalized [ n]cyclo-2,7-pyrenylenes leads to CPP-type macrocycles with a defined cavity capable of binding non-fullerene guests with high association constants

Compound(12080-32-9)Synthetic Route of C8H12Cl2Pt received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Dichloro(1,5-cyclooctadiene)platinum(II)), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Chemoresponsive Shape-Memory Effect of Rhodium-Phosphine Coordination Polymer Networks.Category: alcohols-buliding-blocks.

Chemoresponsive polymers are of technol. significance for smart sensors or systems capable of mol. recognition. An important key requirement for these applications is the material’s structural integrity after stimulation. We explored whether covalently crosslinked metal ion-phosphine coordination polymers (MPN) can be shaped into any temporary shape and are capable of recovering from this upon chemoresponsive exposure to triphenylphosphine (Ph3P) ligands, whereas the MPN provide structural integrity. Depending on the metal-ion concentration used during synthesis of the MPN, the degree of swelling of the coordination polymer networks could be adjusted. Once the MPN was immersed into Ph3P solution, the reversible ligand-exchange reaction between the metal ions and the free Ph3P in solution causes a decrease of the coordination crosslink d. in MPN again. The Ph3P-treated MPN was able to maintain its original shape, indicating a certain stability of shape even after stimulation. In this way, chemoresponsive control of the elastic properties (increase in volume and decrease of mech. strength) of the MPN was demonstrated. This remarkable behavior motivated us to explore whether the MPN are capable of a chemoresponsive shape-memory effect. In initial experiments, shape fixity of around 60% and shape recovery of almost 90% were achieved when the MPN was exposed to Ph3P in case of rhodium. Potential applications for chemoresponsive shape-memory systems could be shapable semiconductors, e.g., for lighting or catalysts, which provide catalytic activity on demand.

Compound(12080-32-9)Category: alcohols-buliding-blocks received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Dichloro(1,5-cyclooctadiene)platinum(II)), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 12080-32-9. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Heterobimetallic PtII-AgI complex supported by diphenyl(2-pyrimidyl)phosphine: Synthesis and thermochromic photoluminescence. Author is Artem’ev, Alexander V.; Rogovoy, Maxim I.; Samsonenko, Denis G.; Rakhmanova, Mariana I..

The reaction of diphenyl(2-pyrimidyl)phosphine (L) derived complex [Pt(L)2Cl2] with AgNO3 (1:3 M ratio, resp.) results in assembly of heterobimetallic complex [AgPt(L)2(NO3)3], wherein Pt → Ag dative bond of 2.9088(2) Å is formed. This complex features thermochromic photoluminescence that appears as ∼40 nm red shift of an emission maximum upon cooling from 300 to 77 K. The related PdII/AgI complex, [AgPd(L)2(NO3)3], showing Pd → Ag dative bond of 2.9098(5) Å, also was synthesized and structurally attested.

Compound(12080-32-9)Related Products of 12080-32-9 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Dichloro(1,5-cyclooctadiene)platinum(II)), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 651780-02-8, is researched, Molecular C12H13BrN2O2, about Base-Free Photoredox/Nickel Dual-Catalytic Cross-Coupling of Ammonium Alkylsilicates, the main research direction is photoredox nickel catalyzed coupling ammonium alkylsilicate hetero aryl bromide.SDS of cas: 651780-02-8.

Single-electron transmetalation is recognized as an enabling technol. for the mild transfer of alkyl groups to transition metal catalysts in cross-coupling reactions. Hypercoordinate silicates represent a new and improved class of radical precursors because of their low oxidation potentials and the innocuous byproducts generated upon oxidation Herein, authors report the cross-coupling of secondary and primary ammonium alkylsilicates with (hetero)aryl bromides in good to excellent yields. The base-free conditions have exceptional protic group tolerance on both partners, permitting the cross-coupling of unprotected primary and secondary amines.

Compound(651780-02-8)SDS of cas: 651780-02-8 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(tert-Butyl 5-bromo-1H-indazole-1-carboxylate), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

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, Article, Inorganic Chemistry called Luminescent Platinum(II) Complexes of N^N-^N Amido Ligands with Benzannulated N-Heterocyclic Donor Arms: Quinolines Offer Unexpectedly Deeper Red Phosphorescence than Phenanthridines, Author is Mandapati, Pavan; Braun, Jason D.; Killeen, Charles; Davis, Rebecca L.; Williams, J. A. Gareth; Herbert, David E., which mentions a compound: 12080-32-9, SMILESS is C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-], Molecular C8H12Cl2Pt, Application of 12080-32-9.

A platform for investigating the impact of π-extension in benzannulated, anionic pincer-type N^N-^N-coordinating amido ligands and their Pt(II) complexes is presented. Based on bis(8-quinolinyl)amine, sym. and asym. proligands bearing quinoline or π-extended phenanthridine (3,4-benzoquinoline) units are reported, along with their red-emitting, phosphorescent Pt(II) complexes of the form (N^N-^N)PtCl. Comparing the photophys. properties of complexes of (quinolinyl)amido ligands with those of π-extended (phenanthridinyl)amido analogs revealed a counterintuitive impact of site-selective benzannulation. Contrary to conventional assumptions regarding π-extension, and in contrast to isoenergetic lowest energy absorption bands and a red shift in fluorescence from the organic proligands, a blue shift of nearly 40 nm in the emission wavelength is observed for Pt(II) complexes with more extended bis(phenanthridinyl) ligand π-systems. Comparing the ground state and triplet excited state structures optimized from d. functional theory (DFT) and time-dependent-DFT calculations, we trace this effect to a greater rigidity of the benzannulated complexes, resulting in a higher energy emissive triplet state, rather than to a significant perturbation of orbital energies caused by π-extension. A counterintuitive impact of π-extension on luminescence from deep red emitting Pt(II) complexes of benzannulated, anionic pincer-type N^N-^N-coordinating amido ligands is reported. Contrary to conventional assumptions, isoenergetic lowest energy absorption bands and a red shift in fluorescence from the organic proligands, a blue shift in the emission wavelength is observed for Pt(II) complexes with more extended bis(phenanthridinyl) π-systems, traced to a greater rigidity of the benzannulated complexes and a higher energy triplet state.

Compound(12080-32-9)Application of 12080-32-9 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Dichloro(1,5-cyclooctadiene)platinum(II)), if you are interested, you can check out my other related articles.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts