Category: isoquinoline

Lee, Minju published the artcileAbatement of Polychoro-1,3-butadienes in Aqueous Solution by Ozone, UV Photolysis, and Advanced Oxidation Processes (O3/H2O2 and UV/H2O2), Recommanded Product: Diatrizoic Acid, the main research area is polychorobutadiene water hydrogen peroxide ozone UV photolysis.

The abatement of 9 polychloro-1,3-butadienes (CBDs) in aqueous solution by ozone, UV-C(254 nm) photolysis, and the corresponding advanced oxidation processes (AOPs) (i.e., O3/H2O2 and UV/H2O2) was investigated. The following parameters were determined for 9 CBDs: Second-order rate constants for the reactions of CBDs with ozone (kO3) (< 0.1 - 7.9×103 M-1s-1) or with hydroxyl radicals (k•OH) (0.9×109 - 6.5×109 M-1s-1), photon fluence-based rate constants (k') (210 - 2730 m2 einstein-1), and quantum yields (Φ) (0.03 - 0.95 mol einstein-1). During ozonation of CBDs in a natural groundwater, appreciable abatements ( > 50% at specific ozone doses of 0.5 gO3/gDOC to âˆ?00% at â‰?1.0 gO3/gDOC) were achieved for tetra-CBDs followed by (Z)-1,1,2,3,4-penta-CBD and hexa-CBD. This is consistent with the magnitude of the determined kO3 and k•OH. The formation of bromate, a potentially carcinogenic ozonation byproduct, could be significantly reduced by addition of H2O2. For a typical UV disinfection dose (400 J/m2), various extents of phototransformations (10-90%) could be achieved. However, the efficient formation of photoisomers from CBDs with E/Z configuration must be taken into account because of their potential residual toxicity. Under UV-C(254 nm) photolysis conditions, no significant effect of H2O2 addition on CBDs abatement was observed due to an efficient direct phototransformation of CBDs.

Environmental Science & Technology published new progress about Conformers. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yang, Ximei published the artcileFurther study on energetic salts of TNATT anion, Synthetic Route of 1455-77-2, the main research area is energetic salt nitroamino functionalized fused triazole synthesis.

Six energetic salts based on fully nitroamino-functionalized fused-triazole were synthesized. All salts were characterized by IR, multinuclear NMR spectroscopy, thermal anal., and elemental anal. The crystal structures of the salts 2, 3, and 6 were confirmed by single-crystal X-ray diffraction. The densities of all salts lie in the range between 1.77-1.83 g cm-3, while their decomposition temperatures range within 142-200°. Most energetic salts are slightly more sensitive than RDX. The calculated detonation pressures and velocities (Gaussian 09 and EXPLO5) of salts 2-7 range within 21.7-39.3 Gpa and 7867-9401 m s-1, resp. Salt 7 exhibits a high d. (1.83 g cm-3), acceptable thermal stability (Td = 179°) and sensitivity (IS = 7 J, FS = 216 N), and excellent detonation performance (vD = 9401 m s-1, P = 39.3 GPa), which suggest that salt 7 may well have promising applications as high-energy-d. materials.

Polyhedron published new progress about Detonation. 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

Yang, Ximei published the artcileFurther study on energetic salts of TNATT anion, Name: 3,5-Diamino-1,2,4-triazole, the main research area is energetic salt nitroamino functionalized fused triazole synthesis.

Six energetic salts based on fully nitroamino-functionalized fused-triazole were synthesized. All salts were characterized by IR, multinuclear NMR spectroscopy, thermal anal., and elemental anal. The crystal structures of the salts 2, 3, and 6 were confirmed by single-crystal X-ray diffraction. The densities of all salts lie in the range between 1.77-1.83 g cm-3, while their decomposition temperatures range within 142-200°. Most energetic salts are slightly more sensitive than RDX. The calculated detonation pressures and velocities (Gaussian 09 and EXPLO5) of salts 2-7 range within 21.7-39.3 Gpa and 7867-9401 m s-1, resp. Salt 7 exhibits a high d. (1.83 g cm-3), acceptable thermal stability (Td = 179°) and sensitivity (IS = 7 J, FS = 216 N), and excellent detonation performance (vD = 9401 m s-1, P = 39.3 GPa), which suggest that salt 7 may well have promising applications as high-energy-d. materials.

Polyhedron published new progress about Detonation. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Name: 3,5-Diamino-1,2,4-triazole.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Yanhong published the artcileMicroencapsulation of Osmanthus essential oil by interfacial polymerization: Optimization, characterization, release kinetics, and storage stability of essential oil from microcapsules, Related Products of isoquinoline, the main research area is Osmanthus essential oil interfacial polymerization elasticity gamma decanolide; Osmanthus essential oil; interfacial polymerization; microencapsulation; polyurea membrane; release kinetics; storage stability.

In this paper, the interface polymerization method was used to prepare Osmanthus essential oil microcapsules. The optimal preparation process of Osmanthus essential oil microcapsules was explored as follows: the dosage ratio of Osmanthus essential oil to N100 was 6:1, the reaction temperature was 70°C, and the reaction time was 2 h. The encapsulation efficiency of Osmanthus essential oil microcapsules could reach 80.31%. The particle size distribution, morphol., chem. structure, and thermal stability of the obtained microcapsules were characterized by laser particle size analyzer, SEM, Fourier transform IR spectroscopy, and thermogravimetric anal. The release kinetics and storage stability experiments of the microcapsules were studied. The results showed that the average volume diameter of the microcapsules was 101.2 μm. The microcapsules were in the shape of full spheres, with a smooth surface, low viscosity, and high elasticity. Microencapsulation improved the thermal stability of Osmanthus essential oil and promoted the slow release of essential oil. The synthesized microcapsules showed good storage stability under refrigerated and dark conditions, which indicated that microcapsules had broad application prospects in food, medicine, and other fields. Practical Application : In this study, we prepared a polyurea membrane to encapsulate Osmanthus essential oil microcapsules by interfacial polymerization The encapsulation conditions of the microcapsules were optimized and the structure of the microcapsules was characterized in this study. The results showed that microcapsules had a full spherical shape with a smooth surface, high elasticity, good sustained-release ability, good thermal stability, and storage stability. These properties indicated that microcapsules have good application prospects and can be used as a high-quality flavor with a long residual effect and high thermal stability for food and cosmetic scope.

Journal of Food Science published new progress about Elasticity. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Yanhong published the artcileMicroencapsulation of Osmanthus essential oil by interfacial polymerization: Optimization, characterization, release kinetics, and storage stability of essential oil from microcapsules, Product Details of C2H5N5, the main research area is Osmanthus essential oil interfacial polymerization elasticity gamma decanolide; Osmanthus essential oil; interfacial polymerization; microencapsulation; polyurea membrane; release kinetics; storage stability.

In this paper, the interface polymerization method was used to prepare Osmanthus essential oil microcapsules. The optimal preparation process of Osmanthus essential oil microcapsules was explored as follows: the dosage ratio of Osmanthus essential oil to N100 was 6:1, the reaction temperature was 70°C, and the reaction time was 2 h. The encapsulation efficiency of Osmanthus essential oil microcapsules could reach 80.31%. The particle size distribution, morphol., chem. structure, and thermal stability of the obtained microcapsules were characterized by laser particle size analyzer, SEM, Fourier transform IR spectroscopy, and thermogravimetric anal. The release kinetics and storage stability experiments of the microcapsules were studied. The results showed that the average volume diameter of the microcapsules was 101.2 μm. The microcapsules were in the shape of full spheres, with a smooth surface, low viscosity, and high elasticity. Microencapsulation improved the thermal stability of Osmanthus essential oil and promoted the slow release of essential oil. The synthesized microcapsules showed good storage stability under refrigerated and dark conditions, which indicated that microcapsules had broad application prospects in food, medicine, and other fields. Practical Application : In this study, we prepared a polyurea membrane to encapsulate Osmanthus essential oil microcapsules by interfacial polymerization The encapsulation conditions of the microcapsules were optimized and the structure of the microcapsules was characterized in this study. The results showed that microcapsules had a full spherical shape with a smooth surface, high elasticity, good sustained-release ability, good thermal stability, and storage stability. These properties indicated that microcapsules have good application prospects and can be used as a high-quality flavor with a long residual effect and high thermal stability for food and cosmetic scope.

Journal of Food Science published new progress about Elasticity. 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

Xu, Jian-Gang published the artcileEnergetic azide-based coordination polymers: Sensitivity tuning through diverse structural motifs, Synthetic Route of 1455-77-2, the main research area is energetic azide based coordination polymer structural analysis sensitivity.

Energetic coordination polymers (ECPs), as a new class of energetic materials (EMs), have attracted extensive attention in recent years. However, controllable modulation of mech. sensitivities and the establishment of structure-function theor. models of ECPs to meet different applications remain great challenges. Herein, we designed and synthesized four azide-based ECPs, [Cd2(N3)2(datz)2]n 1 (Hdatz = 3,5-diamino-1,2,4-triazole), [Cd(N3)2(brt)2]n 2 (brt = 4,4â€?bi-1,2,4-triazole), [Cd(N3)2(btzp)]n 3 (btzp = 1,3-di(tetrazol-1-yl)propane), and [Cd2(N3)4(btzb)]n 4 (btzb = 1,4-bis(tetrazol-1-yl)butane). Because of the existence of consolidated network structures, high-energy linkers, and diverse structural motifs, compounds 1-4 exhibit reliable thermal stabilities, tunable mech. sensitivities, and considerable heats of detonation (ΔHdet) with the ΔHdet values of 3.390, 3.412, 3.947 and 4.504 kJ·g-1, resp., which are two times higher than those of com. LA (lead azide) and the reported AgMtta (AgMtta = [Ag(Mtta)]n, HMtta = 5-methyl-1H-tetrazole). The sensitivity measurements demonstrate that the sensitivity toward impact of 1-4 displays in the following order: 1 (>40 J) â‰?2 (8 J) < 3 (2.5 J) < 4 (2 J). In particular, compound 1 features scarce insensitivity compared with sensitive 2, 3, 4 and most of known azide-based EMs. Furthermore, theor. calculations, structural analyses, and exptl. results revealed that the different sensitivities of the four ECPs are mainly dependent on two different structure models for the first time. The insensitive 1 is ""body frame structure"" model, while the sensitive 2-4 belong to ""non-body frame structure"" model. Our study enlightens new insights into structures behind mech. sensitivities for optimizing advanced EMs. Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Explosives. 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

Xu, Jian-Gang published the artcileEnergetic azide-based coordination polymers: Sensitivity tuning through diverse structural motifs, HPLC of Formula: 1455-77-2, the main research area is energetic azide based coordination polymer structural analysis sensitivity.

Energetic coordination polymers (ECPs), as a new class of energetic materials (EMs), have attracted extensive attention in recent years. However, controllable modulation of mech. sensitivities and the establishment of structure-function theor. models of ECPs to meet different applications remain great challenges. Herein, we designed and synthesized four azide-based ECPs, [Cd2(N3)2(datz)2]n 1 (Hdatz = 3,5-diamino-1,2,4-triazole), [Cd(N3)2(brt)2]n 2 (brt = 4,4â€?bi-1,2,4-triazole), [Cd(N3)2(btzp)]n 3 (btzp = 1,3-di(tetrazol-1-yl)propane), and [Cd2(N3)4(btzb)]n 4 (btzb = 1,4-bis(tetrazol-1-yl)butane). Because of the existence of consolidated network structures, high-energy linkers, and diverse structural motifs, compounds 1-4 exhibit reliable thermal stabilities, tunable mech. sensitivities, and considerable heats of detonation (ΔHdet) with the ΔHdet values of 3.390, 3.412, 3.947 and 4.504 kJ·g-1, resp., which are two times higher than those of com. LA (lead azide) and the reported AgMtta (AgMtta = [Ag(Mtta)]n, HMtta = 5-methyl-1H-tetrazole). The sensitivity measurements demonstrate that the sensitivity toward impact of 1-4 displays in the following order: 1 (>40 J) â‰?2 (8 J) < 3 (2.5 J) < 4 (2 J). In particular, compound 1 features scarce insensitivity compared with sensitive 2, 3, 4 and most of known azide-based EMs. Furthermore, theor. calculations, structural analyses, and exptl. results revealed that the different sensitivities of the four ECPs are mainly dependent on two different structure models for the first time. The insensitive 1 is ""body frame structure"" model, while the sensitive 2-4 belong to ""non-body frame structure"" model. Our study enlightens new insights into structures behind mech. sensitivities for optimizing advanced EMs. Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Explosives. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, HPLC of Formula: 1455-77-2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Schiesser, Stefan published the artcileN-Trifluoromethyl Amines and Azoles: An Underexplored Functional Group in the Medicinal Chemist’s Toolbox, Formula: C8H11NO, the main research area is trifluoromethyl amine azole synthesis solubility permeability drug discovery.

Introducing trifluoromethyl groups is a common strategy to improve the properties of biol. active compounds However, N-trifluoromethyl moieties on amines and azoles are very rarely used. To evaluate their suitability in drug design, we synthesized a series of N-trifluoromethyl amines and azoles, determined their stability in aqueous media, and investigated their properties. We show that N-trifluoromethyl amines are prone to hydrolysis, whereas N-trifluoromethyl azoles have excellent aqueous stability. Compared to their N-Me analogs, N-trifluoromethyl azoles have a higher lipophilicity and can show increased metabolic stability and Caco-2 permeability. Furthermore, N-trifluoromethyl azoles can serve as bioisosteres of N-iso-Pr and N-tert-Bu azoles. Consequently, we suggest that N-trifluoromethyl azoles are valuable substructures to be considered in medicinal chem.

Journal of Medicinal Chemistry published new progress about Alkylation. 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Formula: C8H11NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lu, Chunlei published the artcileDirect N-Alkylation/Fluoroalkylation of Amines Using Carboxylic Acids via Transition-Metal-Free Catalysis, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is amine carboxylic acid metal free fluoroalkylation; fluoroalkylamine preparation; carboxylic acid amine metal free alkylation; alkylamine preparation.

A scalable protocol of direct N-mono/di-alkyl/fluoroalkylation of primary/secondary amines was constructed with various carboxylic acids as coupling agents under the catalysis of a simple air-tolerant inorganic salt, K3PO4. Advantageous features include 100 examples, 10 drugs and drug-like amines, fluorinated complex tertiary amines, gram-scale synthesis and isotope-labeling amine, thus demonstrating the potential applicability in industry of this methodol. The involvement of relatively less reactive silicon-hydride compared with the traditional reactive metal-hydride or boron-hydride species required to reduce the amide intermediates presumably contributes to the remarkable functional group compatibility.

Advanced Synthesis & Catalysis published new progress about Alkylation. 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Svec, Riley L. published the artcileImidazotetrazines as Weighable Diazomethane Surrogates for Esterifications and Cyclopropanations, Safety of 4-Methoxyphenylacetic acid, the main research area is repurpose imidazotetrazine weighable diazomethane synthon esterification cyclopropanation; alkylation; cyclopropanation; diazo compounds; diazomethane; imidazotetrazines.

Diazomethane is one of the most versatile reagents in organic synthesis, but its utility is limited by its hazardous nature. Although alternative methods exist to perform the unique chem. of diazomethane, these suffer from diminished reactivity and/or correspondingly harsher conditions. Herein, we describe the repurposing of imidazotetrazines (such as temozolomide, TMZ, the standard of care for glioblastoma) for use as synthetic precursors of alkyl diazonium reagents. TMZ was employed to conduct esterifications and metal-catalyzed cyclopropanations, and results show that Me ester formation from a wide variety of substrates is especially efficient and operationally simple. TMZ is a com. available solid that is non-explosive and non-toxic, and should find broad utility as a replacement for diazomethane.

Angewandte Chemie, International Edition published new progress about Alkylation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Safety of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem