Tag: M.W=100-150

Taylor, E. G. published the artcileDicyanotriazole. I. The conductance of dilute aqueous solutions of dicyanotriazole at 25°, Product Details of C4HN5, the publication is Canadian Journal of Research, Section B: Chemical Sciences (1942), 161-7, database is CAplus.

Previous exptl. studies of dicyanotriazole resulted in statements that the compound is an acid comparable in strength with the strong mineral acids. In the present work, measurements of the equivalent conductivity of dicyanotriazole in dilute aqueous solution give the dissociation constant of the acid as 3.378 × 10^-2 at 25°; this shows it to be an acid possessing about the same strength as dichloroacetic acid. The limiting equivalent conductivity of dicyanotriazole at 25° is 384.9. The earlier work gave 397.44.

Canadian Journal of Research, Section B: Chemical Sciences published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C17H23BO4, Product Details of C4HN5.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Grishkevichtrokhimovskii, E. published the artcileThe action of nitrous acid on the nitrile of aminomalonic acid, Safety of 1H-1,2,3-Triazole-4,5-dicarbonitrile, the publication is J. Russ. Phys.-Chem. Soc. (1924), 548-50, database is CAplus.

Diazotization of NH₂CH(CN)₂ (I), a trimeric derivative of HCN (see preceding abstract), produced large transparent yellow-orange crystals C₄HN₅ (II), m. 145-50° (partial decomposition and sublimation), having strongly acidic properties which are apparently 1,2,3-triazole-4,5-dicarboxylonitrile, N:N.C(CN):C(CN).NH, and upon saponification with H₂SO₄ give C₂HN₃(CO₂H)₂ (III), mm. 195-200° (decomposition), slightly soluble in aqueousHCl. Acid K salt; Cu salt, explosive. III gave upon dry distillation 1,2,3-triazole; Ag and Bz derivative identical with these described in literature. Saponifying II with aqueous HCl produces the monoamide of III, does not m. 275°. Et ester of the mononitrile of III, C₂HN₃(CN)CO₂Et, m. 114-5°. Derivatives of II: C₄N₅Ag, white powder, stable in light, explodes upon heating; C₄N₅K, microcrystalline powder, not deliquescent; C₄N₅(NH₄); (C₄H₅)₂CU, sky-blue powder; (C₄H₅)₂Ca. 3H₂O; C₄H₅Me, obtained from the Ag salt and MeI, m. 57.5-8.5°. Sublimation of II gives colorless crystals of a substance, apparently isomeric with

J. Russ. Phys.-Chem. Soc. published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Safety of 1H-1,2,3-Triazole-4,5-dicarbonitrile.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Griszkiewicz-Trochimowski, E. published the artcileProducts of polymerization of hydrocyanic acid, Recommanded Product: 1H-1,2,3-Triazole-4,5-dicarbonitrile, the publication is Roczniki Chemii (1921), 468-78, database is CAplus.

The constitution NH₂CH(CN)₂ has been suggested for the trimeride of HCN. In order to verify the presence of the NH₂ group, 2 reactions were investigated, viz., condensation with aldehydes and the action of HNO₂. The 1st reaction followed the course expected, and the following compounds were obtained. With salicylaldehyde, the salicylidene derivative, CH(CN)₂N:CHC₆H₄OH, yellowish green needles, m. about 235° (decomposition). With anisaldehyde, the anisylidene derivative With BzH, the benzylidene derivative, brown plates, m. 190° (decomposition). A benzoyl derivative of the trimeride was also prepared, brown plates, m. 220° (decomposition), together with its unstable hydrochloride. The results with HNO₂ were not those expected; it was thought that a diazo compound would be formed, from which tartaric acid could be obtained by the following reaction: CH(CN)₂NH₂ → CH(CN)₂N:NOH → (CN)₂CHOH → [CH(OH)CO₂H]₂. The product of the reaction does not, however, decompose on boiling; it is obtained from the solution in orange prisms, m. about 145°, and is shown to be 4,5-di-cyano-1,2,.3-triazole. On sublimation at 140°, this is obtained in a colorless modification, for which the constitution NH.N:C(CN).C(CN):N is suggested. The Ag, Cu, Ba, K, and NH₄ salts of the dicyanotriazole were prepared, also its l-methyl derivative, m. 57.5-8.5°. Hydrolysis with HCl gives the 4-amide of 1,2,3-triazole-4,5-dicarboxylic acid, m. 275°. By passing HCl through the substance in Et₂O is obtained ethyl 4-cyano-1,2,3-triazole-5-carboxylate, m. 114-5° from which the acid, m. 225-6°, is obtained, and from this by hydrolysis with H₂SO₄ the 4,5-di-CO₂H acid, m. 195-6°, is produced. It is suggested that the dicyanotriazole may be produced from the HNO₂ by condensation of a diazotized mol. of it with an undiazotized one. The results both with aldehydes and with HNO₂, therefore, support the view that the trimeride of HCN is CH(CN)₂NH₂.

Roczniki Chemii published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Recommanded Product: 1H-1,2,3-Triazole-4,5-dicarbonitrile.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Gryszkiewicz-Trochimowski, E. published the artcileComposition and structure of the polymer of hydrocyanic acid, Related Products of triazoles, the publication is Roczniki Chemii (1928), 165-74, database is CAplus.

cf. C. A. 17, 1424; 18, 1985; Bull. soc. chim. 35, 366(1924). The formula of a 4,5-dicyano-1,2,3-triazole proposed for the polymer (I) by G. is made probable by Bedel’s finding that I is C₄H₄N₄. It was confirmed by condensation with glyoxylic acid. When prepared by polymerazation of an aqueous (90%) HCN with 10% aqueous NH₃ at the b. p. the product is black and the yield very small. A brown product with a yield of 20-5% is obtained by using anhydrous HCN containing 0.5% KCN at room temperature The crystals are easily separated form amorphous matter by extraction with boiling ether or cold acetone. The acetone extract is evaporated at room temperature since it reacts on heating. I recrystallized from water or aqueous MeOH with bone coal, is almost colorless, m. 180° (decomposition). Ten g. powd. I was added to 5.5 g. polyglyoxal in 50 cc. hot water. The dark crystalline reaction product seps. instantaneously. Yield 80%. Recrystallized from alc. or water, then from benzene, it m. 132.5°. The mol. weight (ebullioscopic) is 131.0, which points to C₆N₄H₂. It yields on saponification of 2 g. with 3 g. NaOH in 10 cc. 50% alc., neutralization with HNO₃, precipitation with AgNO₃ and liberation with HCl 1.2 g. pyrazine-2,3-dicarboxylic acid, m. 182-5° (decomposition). It is therefore 2,3-dicyanopyrazine, and I is accordingly cis-dicyanodiaminoethylene or diaminomaleic dinitrile. The saponification of I probably first leads to HO(NH₂)C:C(NH₂)CN and in the second stage to NH₂CO₂H and NCCH₂NH₂ which finally are decomposed to CO₂, NH₃ and glycine. The polymerization probably takes place over the dimer, diiminoethylene.

Roczniki Chemii published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Related Products of triazoles.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Keshavarz, Mohammad Hossein published the artcileA New General Correlation for Predicting Impact Sensitivity of Energetic Compounds, Name: 4-Nitro-2H-1,2,3-triazole, the publication is Propellants, Explosives, Pyrotechnics (2013), 38(6), 754-760, database is CAplus.

This paper describes an improved simple model for prediction of impact sensitivity of different classes of energetic compounds containing nitropyridines, nitroimidazoles, nitropyrazoles, nitrofurazanes, nitrotriazoles, nitropyrimidines, polynitroarenes, benzofuroxans, polynitroarenes with α-CH, nitramines, nitroaliphatics, nitroaliph. containing other functional groups, and nitrate energetic compounds The model is based on some mol. structural parameters. It is applied for 90 explosives, which have different mol. structures. The predicted results are compared with outputs of complex neural network approach as one of the best available methods. Root mean squares (rms) of deviations of different energetic compounds are 24 and 49 cm, corresponding to 5.88 and 12.01 J with 2.5 kg dropping mass, for new and neural network methods, resp. The novel model also predicts good results for eight new synthesized and miscellaneous explosives with respect to exptl. data.

Propellants, Explosives, Pyrotechnics published new progress about 84406-63-3. 84406-63-3 belongs to triazoles, auxiliary class Triazole,Nitro Compound, name is 4-Nitro-2H-1,2,3-triazole, and the molecular formula is C2H2N4O2, Name: 4-Nitro-2H-1,2,3-triazole.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Kohler, E. P. published the artcileIsoxazoline oxides. VIII, Application In Synthesis of 53817-16-6, the publication is Journal of the American Chemical Society (1928), 221-8, database is CAplus.

cf. C. A. 21, 583. An investigation of the process by which MeOH-KOAc transforms certain α-bromo-γ-nitro ketones into β-hydroxy-γ-oximido esters indicates that the primary product of the reaction is an isoxazoline oxide. The action of Na₂CO₃ in dry MeOH upon PhCH(CH₂NO₂)CHBrBz gives a mixture of 3 isomeric benzoylphenylnitrocyclopropanes, m. 95° (previously known), 88° and 140-2° and the hydroxamic ether, PhCH[C(OMe):NOH]CH(OH)Bz (I), crystallizing with 1 mol. Me₂CO, m. 190° (decomposition); the solution in cold 20% aqueous NaOH gives with Ac₂O the acetate, m. 185° (decomposition); on standing the solution gives hydroxamic acid, m. about 160° (decomposition); acids appear to rearrange I to the isomeric oximido ester. trans-α-Phenyl-β-benzoylacrylic acid, m. 220°, is the final product of the degradation of these derivatives by acids; its structure was established by oxidation and synthesis.

Journal of the American Chemical Society published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Application In Synthesis of 53817-16-6.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Neuman, Peter N. published the artcileNitro derivatives of phenyl-1,2,3-triazole, Application In Synthesis of 14544-45-7, the publication is Journal of Heterocyclic Chemistry (1971), 8(1), 51-6, database is CAplus.

A number of tri- and tetranitro-N-phenyl-1,2,3-triazolyl compounds were synthesized by a combination of condensation, cycloaddition, and nitration reactions, and their crystal densities, impact sensitivities, and thermal stabilities were determined

Journal of Heterocyclic Chemistry published new progress about 14544-45-7. 14544-45-7 belongs to triazoles, auxiliary class Triazoles, name is 5-Nitro-1H-1,2,3-triazole, and the molecular formula is C2H2N4O2, Application In Synthesis of 14544-45-7.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Noorpoor, Zeinab published the artcileThe needle trap extraction capability of a zinc-based metal organic framework with a nitrogen rich ligand, Related Products of triazoles, the publication is Journal of Coordination Chemistry (2021), 74(13), 2213-2226, database is CAplus.

A triple ring nitrogen rich ligand 4,5-Di(1H-tetrazol-5-yl)-2H-1,2,3-triazole (Hdttz) and along that a three-dimensional, zinc-based metal organic framework (MOF) were synthesized. The synthesized MOF was characterized by Fourier transform IR spectroscopy (FT-IR), powder X-ray diffraction (PXRD), energy dispersive X-ray spectroscopy and mapping, SEM (SEM) and Brunauer-Emmett-Teller (BET) analyses. The extraction capability of the synthesized nanostructure was examined toward some analytes as model compounds Properties such as porous structure and considerable surface area make it a suitable and efficient extractive phase. The extraction efficiency of the Zn-based MOF was evaluated for headspace needle trap extraction (HS-NTE) of benzene homologs (BTEX) as model compounds from aquatic media in conjunction with gas chromatog.-mass spectrometry (GC-MS). To increase the sensitivity of the method, parameters including the extraction and desorption conditions were optimized. For some environmental water samples, acceptable relative recovery (RR) values at the concentration level of 20 ng L^-1 ranged from 85 to 96% and showing no significant matrix effect.

Journal of Coordination Chemistry published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Related Products of triazoles.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Du, Zhiming published the artcile4,5-Bis(5-tetrazolyl)-1,2,3-triazole: Synthesis and Performance, Application of 1H-1,2,3-Triazole-4,5-dicarbonitrile, the publication is Propellants, Explosives, Pyrotechnics (2015), 40(6), 954-959, database is CAplus.

4,5-Bis(5-tetrazolyl)-1,2,3-triazole (BTT) was synthesized by a new method. Its structure was characterized by IR and ¹³C NMR spectroscopy and elemental anal. (EA). The thermal stability of BTT was investigated by TG-DSC technique. The kinetic parameters including activation energy and pro-exponential factor were calculated by Kissinger equation. The combustion heat, detonation products, hygroscopicity, impact, and friction sensitivity were also measured. The formation heat, detonation pressure, and detonation velocity of BTT were calculated BTT has high detonation pressure and detonation velocity (P=35.36 GPa, D=8.971 km s^-1). BTT has potential application prospect as environmentally friendly gas generant, insensitive explosive and solid propellant.

Propellants, Explosives, Pyrotechnics published new progress about 53817-16-6. 53817-16-6 belongs to triazoles, auxiliary class Triazoles, name is 1H-1,2,3-Triazole-4,5-dicarbonitrile, and the molecular formula is C4HN5, Application of 1H-1,2,3-Triazole-4,5-dicarbonitrile.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics

Shao, Xiaoqing published the artcileDecarboxylative C_sp³-N Bond Formation by Electrochemical Oxidation of Amino Acids, Formula: C2H2N4O2, the publication is Organic Letters (2019), 21(22), 9262-9267, database is CAplus and MEDLINE.

Decarboxylative C_sp3-N coupling reactions have been developed through electrochem. oxidation of amino acids. The reaction proceeds via anodic oxidative decarboxylation of carboxylic acids to form stabilized carbocations, which are trapped by azoles or amides to construct C-N bonds. This method avoids the preactivation of carboxylic acids and the use of expensive transition-metals and external chem. oxidants.

Organic Letters published new progress about 84406-63-3. 84406-63-3 belongs to triazoles, auxiliary class Triazole,Nitro Compound, name is 4-Nitro-2H-1,2,3-triazole, and the molecular formula is C13H19Br2ClN2O, Formula: C2H2N4O2.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics