Category: isoquinoline

Suriyanarayanan, Subramanian published the artcileNon-ionic deep eutectic liquids: acetamide-urea derived room temperature solvents, Category: isoquinoline, the main research area is acetamide urea room temperature solvent deep eutectic liquid; acetamide–urea; deep-eutectic solvent; flickering cluster.

A family of non-ionic deep eutectic liquids has been developed based upon mixtures of solid N-alkyl derivatives of urea and acetamide that in some cases have m.ps. below room temperature The eutectic behavior and phys. characteristics of a series of eleven eutectic mixtures are presented, along with a mol. dynamics study-supported hypothesis for the origin of the non-ideal mixing of these substances. Their use as solvents in applications ranging from natural product extraction to organic and polymer synthesis are demonstrated.

International Journal of Molecular Sciences published new progress about Click chemistry. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Mingsheng published the artcileAn efficient anti-flaming phosphorus-containing guanazole derivative for cotton fabric, Category: isoquinoline, the main research area is guanazole flaming phosphorus cotton fabric.

A high-efficiency, halogen-free flame retardant: ammonium salt of guanazole-penta-(methylphosphonic acid) (AGPMPA) was synthesized in water solution under a mild reaction condition. The chem. structure of AGPMPA was characterized by FT-IR, 1H NMR, 13C NMR and 31P NMR spectra. Vertical burning tests showed that cotton fabrics treated with 20%, 25% and 30% AGPMPA cannot be ignited, and the shortest carbon length reaches 2.9 cm for 30% treated cotton. The limiting oxygen indexes of the treated cottons go up to 43.7-47.9% with the increases of AGPMPA concentrations and are still beyond 26.8% even after 50 laundering cycles, indicating that AGPMPA is a superior, durable flame retardant. Simultaneously, cone calorimeter data indicate that the heat release rate and the total heat release of treated cotton was remarkably decreased compared with those of control cotton. The TG-IR results indicate that the amounts of volatile products are prominently reduced, and the degradation temperature of treated cotton is lower than that of control cotton. The residual amounts of 46.1% in N2 gas and 31.6% in air for treated cotton fabric were attained, resp. No noteworthy change for the surface of treated cotton fiber was observed by SEM. The mech. properties of cotton fabrics before and after treatment have barely changed. These results proved that eco-friendly AGPMPA is an effective anti-flaming agent and has excellent durability.

Cellulose (Dordrecht, Netherlands) published new progress about Cotton textiles. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Mingsheng published the artcileAn efficient anti-flaming phosphorus-containing guanazole derivative for cotton fabric, Product Details of C2H5N5, the main research area is guanazole flaming phosphorus cotton fabric.

A high-efficiency, halogen-free flame retardant: ammonium salt of guanazole-penta-(methylphosphonic acid) (AGPMPA) was synthesized in water solution under a mild reaction condition. The chem. structure of AGPMPA was characterized by FT-IR, 1H NMR, 13C NMR and 31P NMR spectra. Vertical burning tests showed that cotton fabrics treated with 20%, 25% and 30% AGPMPA cannot be ignited, and the shortest carbon length reaches 2.9 cm for 30% treated cotton. The limiting oxygen indexes of the treated cottons go up to 43.7-47.9% with the increases of AGPMPA concentrations and are still beyond 26.8% even after 50 laundering cycles, indicating that AGPMPA is a superior, durable flame retardant. Simultaneously, cone calorimeter data indicate that the heat release rate and the total heat release of treated cotton was remarkably decreased compared with those of control cotton. The TG-IR results indicate that the amounts of volatile products are prominently reduced, and the degradation temperature of treated cotton is lower than that of control cotton. The residual amounts of 46.1% in N2 gas and 31.6% in air for treated cotton fabric were attained, resp. No noteworthy change for the surface of treated cotton fiber was observed by SEM. The mech. properties of cotton fabrics before and after treatment have barely changed. These results proved that eco-friendly AGPMPA is an effective anti-flaming agent and has excellent durability.

Cellulose (Dordrecht, Netherlands) published new progress about Cotton textiles. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Product Details of C2H5N5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wu, Le published the artcileSynthesis of 3,5-ditetrazolyl-1,2,4-triazole-based complexes: a strategy for developing C-N-linked triheterocyclic energetic compound, Synthetic Route of 1455-77-2, the main research area is explosive cyclic zolyl zole complex synthesis.

A novel C-N-linked triheterocyclic compound, 3,5-ditetrazolyl-1,2,4-triazole (DTT), was synthesized via a facile strategy from 3,5-diamino-1,2,4-triazole. Two metal complexes based on the DTT ligand were prepared and fully characterized using elemental anal., IR spectroscopy, mass spectrometry, and single-crystal X-ray diffraction. Their properties, including d., heat of formation, thermal stability and sensitivity, as well as detonation performance determined using the EXPLO5 program package, were investigated. NaDTT and KDTT showed high pos. heats of formation, low sensitivities and good detonation performances. The approach presented here could contribute to the development of C-N-linked polyheterocyclic compounds as new energetic materials.

New Journal of Chemistry published new progress about Crystallography. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Synthetic Route of 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wu, Le published the artcileSynthesis of 3,5-ditetrazolyl-1,2,4-triazole-based complexes: a strategy for developing C-N-linked triheterocyclic energetic compound, Synthetic Route of 1455-77-2, the main research area is explosive cyclic zolyl zole complex synthesis.

A novel C-N-linked triheterocyclic compound, 3,5-ditetrazolyl-1,2,4-triazole (DTT), was synthesized via a facile strategy from 3,5-diamino-1,2,4-triazole. Two metal complexes based on the DTT ligand were prepared and fully characterized using elemental anal., IR spectroscopy, mass spectrometry, and single-crystal X-ray diffraction. Their properties, including d., heat of formation, thermal stability and sensitivity, as well as detonation performance determined using the EXPLO5 program package, were investigated. NaDTT and KDTT showed high pos. heats of formation, low sensitivities and good detonation performances. The approach presented here could contribute to the development of C-N-linked polyheterocyclic compounds as new energetic materials.

New Journal of Chemistry published new progress about Crystallography. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Synthetic Route of 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Farhat, Ali published the artcileRemoval of Persistent Organic Contaminants by Electrochemically Activated Sulfate, HPLC of Formula: 117-96-4, the main research area is persistent organic contaminant electrochem activated sulfate wastewater.

Solutions of sulfate have often been used as background electrolytes in the electrochem. degradation of contaminants and have been generally considered inert even when high-oxidation-power anodes such as boron-doped diamond (BDD) were employed. This study examines the role of sulfate by comparing electro-oxidation rates for seven persistent organic contaminants at BDD anodes in sulfate and inert nitrate anolytes. Sulfate yielded electro-oxidation rates 10-15 times higher for all target contaminants compared to the rates of nitrate anolyte. This electrochem. activation of sulfate was also observed at concentrations as low as 1.6 mM, which is relevant for many wastewaters. Electrolysis of diatrizoate in the presence of specific radical quenchers (tert-butanol and methanol) had a similar effect on electro-oxidation rates, illustrating a possible role of the hydroxyl radical (•OH) in the anodic formation of sulfate radical (SO4•-) species. The addition of 0.55 mM persulfate increased the electro-oxidation rate of diatrizoate in nitrate from 0.94 to 9.97 h-1, suggesting a nonradical activation of persulfate. Overall findings indicate the formation of strong sulfate-derived oxidant species at BDD anodes when polarized at high potentials. This may have pos. implications in the electro-oxidation of wastewaters containing sulfate. For example, the energy required for the 10-fold removal of diatrizoate was decreased from 45.6 to 2.44 kWh m-3 by switching from nitrate to sulfate anolyte.

Environmental Science & Technology published new progress about Current density. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, HPLC of Formula: 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Schneider, A.-L. published the artcileElectrochemical oxidation of iodinated X-ray contrast media by boron-doped diamond electrodes, Safety of Diatrizoic Acid, the main research area is electrochem oxidation iodinated boron diamond electrode.

Iodinated X-ray contrast media (IXCM) represent widespread water pollutants due to their poor elimination by common wastewater treatment techniques such as aerobic and anaerobic biodegradation In this study, we demonstrate the removal of six IXCM (iotalamic acid, iopamidol, iohexol, iopromide, iomeprol and diatrizoate) by electrochem. treatment with boron-doped diamond electrodes. Experiments were performed with model solutions and field water samples. Electrochem. treatment of IXCM in synthetic solution resulted in complete deiodination and generation of the oxidation product iodate. We observed a dissolved organic carbon (DOC) decrease of 30%-80% in IXCM solutions, indicating partial mineralization. Electrochem. IXCM degradation followed pseudo-first-order kinetics. In experiments with surface water and effluent from a wastewater treatment plant, successful degradation of IXCM was achieved despite the high DOC background. These results demonstrate that electrochem. treatment is a promising method for IXCM removal. Further studies into biodegradation of transformation products are recommended.

Desalination and Water Treatment published new progress about Current density. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Safety of Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Hao published the artcileHigh performance epoxy resin composites modified with multifunctional thiophene/phosphaphenanthrene-based flame retardant: Excellent flame retardance, strong mechanical property and high transparency, Synthetic Route of 1455-77-2, the main research area is thiophene phosphaphenanthrene flame retardant epoxy resin composite mech property.

It is always a challenge to prepare multifunctional epoxy resins (EP) composites with excellent flame retardance, mech. property and high transparency. In this work, a reactive flame-retardant (BDO) was synthesized from DOPO, 3,5-diamino-triazolz and thiophene-2-formaldehyde, and taken to prepare EP/BDO composites. Surprisingly, benefitting from the synergy of efficient flame retardant unit (DOPO structure), catalytic curing unit (triazole structure) and optical functional structure (thiophene-2-formaldehyde), the EP composites with excellent comprehensive performance was obtained. In detailed, after adding only 5 wt% BDO, the EP composites passed the UL-94 V-0 level, and the limiting oxygen index was increased to 33% from 22.5% of neat EP. At the same time, EP/BDO-5 showed obvious heat suppression and smoke suppression effects. Besides, EP/BDO-5 presented excellent mech. strength, that the tensile strength and bending strength were increased by 25% and 30% compared with neat EP. Moreover, EP/BDO composites maintained the same good light transmittance as neat EP, and also presented enhanced Tg and dielec. property. In addition, the dual phase flame-retardant mechanism was revealed through systematically analyzing residues after combustion and the gaseous phase products of flame retardant. The above results indicated EP/BDO composites with excellent comprehensive performance possessed a great potential application in high-performance composites fields.

Composites, Part B: Engineering published new progress about Bending strength. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Synthetic Route of 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Hao published the artcileHigh performance epoxy resin composites modified with multifunctional thiophene/phosphaphenanthrene-based flame retardant: Excellent flame retardance, strong mechanical property and high transparency, Quality Control of 1455-77-2, the main research area is thiophene phosphaphenanthrene flame retardant epoxy resin composite mech property.

It is always a challenge to prepare multifunctional epoxy resins (EP) composites with excellent flame retardance, mech. property and high transparency. In this work, a reactive flame-retardant (BDO) was synthesized from DOPO, 3,5-diamino-triazolz and thiophene-2-formaldehyde, and taken to prepare EP/BDO composites. Surprisingly, benefitting from the synergy of efficient flame retardant unit (DOPO structure), catalytic curing unit (triazole structure) and optical functional structure (thiophene-2-formaldehyde), the EP composites with excellent comprehensive performance was obtained. In detailed, after adding only 5 wt% BDO, the EP composites passed the UL-94 V-0 level, and the limiting oxygen index was increased to 33% from 22.5% of neat EP. At the same time, EP/BDO-5 showed obvious heat suppression and smoke suppression effects. Besides, EP/BDO-5 presented excellent mech. strength, that the tensile strength and bending strength were increased by 25% and 30% compared with neat EP. Moreover, EP/BDO composites maintained the same good light transmittance as neat EP, and also presented enhanced Tg and dielec. property. In addition, the dual phase flame-retardant mechanism was revealed through systematically analyzing residues after combustion and the gaseous phase products of flame retardant. The above results indicated EP/BDO composites with excellent comprehensive performance possessed a great potential application in high-performance composites fields.

Composites, Part B: Engineering published new progress about Bending strength. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Quality Control of 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Yun published the artcileMachine learning bioactive compound solubilities in supercritical carbon dioxide, COA of Formula: C9H10O3, the main research area is machine learning bioactive compound solubility supercritical carbon dioxide.

The supercritical carbon dioxide (s.c.-CO2) is one of promising solvents for supercritical fluid extraction The solubility of bioactive compounds in the s.c.-CO2 is an important factor in designing the extraction process. Obtaining solubility data by experiments requires a large amount of resource and manpower. A model is highly sought if it is simple and can apply to a wide selection of solutes. We develop the Gaussian process regression model to study the relationship among the solute mol. weight, solute m.p., temperature, pressure, s.c.-CO2 d., and solubilities of 30 bioactive compounds in more than 1,000 scenarios. The model manifests a high degree of accuracy and stability, contributing to fast low-cost estimations of solubilities of a variety of bioactive compounds

Chemical Physics published new progress about Bioactive agents. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, COA of Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem