Tag: M.W=100-150

Cranston, Rosemary R. published the artcileN-type solution-processed tin versus silicon phthalocyanines: Comparison of performance in organic thin-film transistors and in organic photovoltaics, Product Details of C8H4N2, the main research area is tin phthalocyanine silicon organic photovoltaic thin film transistor; photostability solution processing semiconductor.

Tin(IV) phthalocyanines (SnPcs) are promising candidates for low-cost organic electronic devices, and have been employed in organic photovoltaics (OPVs) and organic thin-film transistors (OTFTs). However, they remain relatively understudied compared to their silicon phthalocyanine (SiPc) analogs. Previously, we reported the first solution-processed SnPc semiconductors for OTFTs and OPVs; however, the performances of these derivatives were unexpected. Herein to further study the behavior of these derivatives in OPVs and OTFTs, we report the synthesis along with optical and thermal characterization of seven axially substituted (OR)2-SnPcs, five of which were synthesized for the first time. D. functional theory (DFT) was used to predict charge-carrier mobilities for our materials in their crystal state. The application of these SnPcs as ternary additives in poly(3-hexylthiophene) (P3HT)/phenyl-C61-butyric acid Me ester (PC61BM) OPVs and as semiconductors in solution-processed n-type OTFTs was also investigated. When employed as ternary additives in OPVs, all (OR)2-SnPcs decreased the power conversion efficiency, open-circuit voltage, short-circuit current, and fill factor. However, in OTFTs, four of the seven materials exhibited greater electron field-effect mobility with similar threshold voltages compared to their previously studied SiPc analogs. Among these SnPcs, bis(triisobutylsilyl oxide) SnPc displayed the greatest electron field-effect mobility of 0.014 cm2 V-1 s-1, with a threshold voltage of 31.4 V when incorporated into OTFTs. This difference in elec. performance between OTFT and OPV devices was attributed to the low photostability of SnPcs.

ACS Applied Electronic Materials published new progress about Organic thin film transistors. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Product Details of C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Ishida, Shintaro published the artcileStructures and Properties of Phenylene-Bridged 1,3-Diaza-2-silole and Related 2H-Azasilirenes Obtained by the Reactions of a Dialkylsilylene with Arylnitriles, Safety of Phthalonitrile, the main research area is silylene cycloaddition nitrile dinitrile preparation azasilirene disilolocyclooctene spirocycle; crystal mol structure azasilirene diazasilolocyclooctene spirocycle.

Cycloadditions of diorganosilylenes with nitriles afforded azasilirenes, while phthalonitrile gave dibenzobis[1,3,2]-diazasilolocyclooctene I (10) and spirocycle II (11) with 2,2,5,5-tetra-TMS-1-silacyclopentylidene. Silylene cycloaddition with unsaturated compounds have been extensively explored as convenient and efficient routes to silacycles. Among these, reactions of silylenes with nitriles are still limited and the electronic properties of the resulting azasilacycles such as 2H-azasilirene and 1,3-diaza-2-siloles are less examined We report herein synthesis of a phenylene-bridged 1,3-diaza-2-silole and C-aryl 2H-azasilirenes using cycloaddition reactions of a silylene as well as their structures and UV/Vis absorption spectra. Treatment of an isolable dialkylsilylene, 2,2,5,5-tetra-TMS-1-silacyclopentylidene, with o-phthalonitrile afforded a phenylene-bridged 1,3-diazasilole 10 and an isomeric dearomatized product 11. Similar reactions with p-substituted benzonitriles gave new 2H-azasilirenes. UV/Vis absorption spectra and theor. calculations showed that high-lying n(C:N) orbitals in 1,3-diaza-2-siloles and 2H-azasilirenes and low-lying π*(1,3-diaza-2-silole) orbitals are important for their electronic characters. Computational studies revealed that 1,3-dipolar cycloaddition of silylene nitrile complexes (nitrile silaylides) with the second nitrile and an aromatic C:C bond of 2-cyanophenyl group are key steps for the cycloaddition

European Journal of Inorganic Chemistry published new progress about [1+2] Cycloaddition reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Kal-Koshvandi, Afsaneh Taheri published the artcileSynthesis and Characterization of Ultrapure HKUST-1 MOFs as Reusable Heterogeneous Catalysts for the Green Synthesis of Tetrazole Derivatives, Application of Phthalonitrile, the main research area is copper benzene tricarboxylate metal organic framework preparation surface structure; phenyltetrazole preparation green chem; phenyl tetrazolopyrimidine preparation green chem.

An ultrapure HKUST-1 MOFs synthesized through a precised methodol. as a heterogeneous catalyst for a green approach to the synthesis of tetrazole derivatives via two-, three-, and four-component reactions in milder reaction conditions was presented. Various preparation methods to produce HKUST-1 such as microwave irradiation, reflux, hydrothermal technique, and ultrasonication was precisely compared and it was proved that the best result was obtained during the hydrothermal technique. This was the first design, preparation, characterization and application in the present of HKUST-1 MOFs to the synthesis of the biol. and pharmaceutically important tetrazole compounds in green conditions. Moreover, plausible mechanisms of reactions was suggested for the catalytic activity of the presented catalyst. The catalyst was characterized by various techniques such as FT-IR, SEM, EDX, and XRD. Addnl., HKUST-1 was recoverable as well as reusable without any significant loss of its activity, which strongly supports the heterogeneous nature of the catalyyst. This novel catalysis protocol offered several advantages such as eco-friendly conditions, lower reaction time, milder reaction conditions, excellent catalytic activity and an easy separation of the catalyst make it a good heterogeneous system.

ChemistrySelect published new progress about [3+2] Cycloaddition reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Application of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nikoorazm, Mohsen published the artcileCopper and nickel immobilized on cytosine@MCM-41: as highly efficient, reusable and organic-inorganic hybrid nanocatalysts for the homoselective synthesis of tetrazoles and pyranopyrazoles, Safety of Phthalonitrile, the main research area is copper mmobilized cytosine functionalized mesoporous silica catalyst preparation; nickel immobilized cytosine functionalized mesoporous silica catalyst preparation; pyranopyrazole preparation green chem; phenyl tetrazole preparation green chem.

In this work, a green approach was reported for efficient synthesis of biol. active tetrazole and pyranopyrazole derivatives in the presence of Cu-Cytosine@MCM-41 and Ni-Cytosine@MCM-41 (copper (II) and nickel (II) catalyst on the modified MCM-41 using cytosine). The synthesis of tetrazoles and pyranopyrazoles in the presence of these catalysts was performed in green solvents such as water or poly (ethylene glycol) (PEG). All products were obtained in high TOF (turnover frequency) numbers in the presence of these catalysts, which indicate the high efficiency of these catalysts in the synthesis of tetrazole and pyranopyrazole derivatives The prepared catalysts were characterized by various techniques such as BET, TGA, XRD, FT-IR, SEM, EDS, WDX, TEM, and AAS. Mesoporous structure of these catalysts was confirmed by nitrogen adsorption-desorption isotherms. These catalysts can be recovered and reused for several runs without significant change in their catalytic activity or metal capacity. The recovered catalysts have been characterized by XRD, SEM, EDS, WDX, FT-IR and AAS techniques, by which their heterogeneous nature has been confirmed.

Applied Organometallic Chemistry published new progress about [3+2] Cycloaddition reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Ghafouri-Nejad, Raziyeh published the artcileSynthesis and characterization of Cu-N, N’-Dicyclohexylcarbodiimide supported on CMK-3 as a novel, efficient and recoverable nanocatalyst for synthesis of tetrazole, polyhydroquinoline, and sulfoxide derivatives, Product Details of C8H4N2, the main research area is dicyclohexylcarbodiimide carbon nanocatalyst tetrazole polyhydroquinoline sulfoxide derivative.

Mesoporous carbon CMK-3 was prepared using SBA-15 silica mesoporous as a hard template. Then, Cu-N, N’-Dicyclohexylcarbodiimide was supported on CMK-3 as a reusable and highly efficient nanocatalyst for the synthesis of tetrazole, polyhydroquinoline, and sulfoxide derivatives This new catalyst was characterized by FT-IR spectroscopy, XRD, SEM, BET, TGA, EDX, and ICP-OES techniques. After completing reactions, the catalyst was easily separated from the reaction mixture using centrifuge and reusable five times without significant loss of their catalytic efficiency.

Reaction Kinetics, Mechanisms and Catalysis published new progress about [3+2] Cycloaddition reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Product Details of C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Fatahi, Hosna published the artcileSynthesis of α-Aminonitriles and 5-Substituted 1H-Tetrazoles Using an Efficient Nanocatalyst of Fe3O4@SiO2-APTES-supported Trifluoroacetic Acid, Synthetic Route of 100-70-9, the main research area is iron oxide supported silylpropylammonium trifluoroacetic acid preparation surface structure; carbonyl compound aniline heterogeneous catalyst Strecker reaction green chem; phenylamino acetonitrile preparation; sodium azide aryl nitrile heterogeneous catalyst cycloaddition green chem; aryl tetrazole preparation.

Fe3O4@SiO2-APTES-supported trifluoroacetic acid nanocatalyst was used for the one-pot synthesis of α-aminonitriles via a three-component reaction of aldehydes (or ketones), amines and sodium cyanide. This method produced a high yield of 75-96% using only a small amount of the catalyst (0.05 g) in EtOH at room temperature The catalyst was also employed for the synthesis of 5-substituted 1H-tetrazoles from nitriles and sodium azide in EtOH at 80°. The tetrazoles were produced with good-to-excellent yields in a short reaction time of 4 h. Both synthetic methods were carried out in the absence of an organic volatile solvent. Because the supported trifluoroacetic acid generated a solid acid on the surface, thus the acid corrosiveness was not a serious challenge. This heterogeneous nanocatalyst was magnetically recovered and reused several times without significant loss of catalytic activity.

Journal of Heterocyclic Chemistry published new progress about [3+2] Cycloaddition reaction. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Synthetic Route of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Cao, Yu published the artcileSelf-[3+2] annulation reaction of pyridinium salts: synthesis of N-indolizine-substituted pyridine-2(1H)-ones, Quality Control of 1885-29-6, the main research area is benzyolmethyl pyridinium bromide cycloaddition; aroyl arylindolizinyl pyridinone preparation; aniline benzyolmethyl pyridinium bromide cycloaddition; benzoyl phenylindolizinylpyridinylideneamino benzonitrile preparation.

A self-[3+2] annulation reaction of pyridinium salts was developed for the synthesis of N-indolizine-substituted pyridine-2(1H)-ones. This protocol was carried out under mild reaction conditions without any precious catalysts in generally moderate to good yields. Addnl., a plausible mechanism for the transformation was proposed.

New Journal of Chemistry published new progress about [3+2] Cycloaddition reaction. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Quality Control of 1885-29-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Aali, Elaheh published the artcile1-Disulfo-[2,2-bipyridine]-1,1-diium chloride ionic liquid as an efficient catalyst for the green synthesis of 5-substituted 1H-tetrazoles, Application of 2-Aminobenzonitrile(Flakes or Chunks), the main research area is tetrazole preparation green chem; nitrile sodium azide cycloaddition ionic liquid catalyst; disulfo bipyridinium chloride ionic liquid preparation.

A simple, green and efficient method has been developed for the synthesis of 5-substituted 1H-tetrazole derivatives I (R = Bu, thiophen-2-yl, 3,4,5-trimethoxyphenyl, etc.) through [2+3] cycloaddition reaction in good to excellent yields between various benzonitriles RCN and sodium azide. For this purpose, 1-disulfo-[2,2-bipyridine]-1,1-diium chloride ([BiPy](HSO3)2Cl2) system as an ionic liquid catalyst have been extended for the construction of these valuable products. This procedure has significant advantages, including using ethylene glycol as a green solvent. The other advantages of this method are inexpensive and simple preparation of the catalyst, mild reaction conditions, green reaction medium, easy workup, short reaction time, and simple exptl. process.

Journal of Molecular Structure published new progress about [3+2] Cycloaddition reaction. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, Application of 2-Aminobenzonitrile(Flakes or Chunks).

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Nikoorazm, Mohsen published the artcileTwo Schiff-base complexes of copper and zirconium oxide supported on mesoporous MCM-41 as an organic-inorganic hybrid catalysts in the chemo and homoselective oxidation of sulfides and synthesis of tetrazoles, SDS of cas: 91-15-6, the main research area is Schiff base metal complex supported mesoporous MCM41 catalyst preparation; tetrazole green preparation; nitrile sodium azide cycloaddition Schiff base metal complex catalyst; sulfoxide green preparation chemoselective homoselective; sulfide oxidation Schiff base metal complex catalyst.

A simple and efficient procedure was reported for the synthesis of tetrazole derivatives I [R = CH2CN, Ph, 4-BrC6H4, etc.], the chemo and homoselective oxidation of sulfides to sulfoxides R1S(O)R2 [R1 = allyl, n-Bu, Ph, etc.; R2 = Me, CH2CH2OH, Bn, etc.] in the presence of two Schiff-base complexes of zirconium oxide and copper anchored on MCM-41 as mesoporous and organometallic catalysts under green conditions. All the products were obtained in excellent yields with high TOF values indicating the high activity of the synthesized catalysts. These catalysts were characterized by XRD, TGA, SEM, EDS, FT-IR, TEM, WDX, BET and AAS techniques and could be recycled for several times without significant loss in catalytic activity. The recovered catalysts were characterized by SEM, FT-IR and AAS anal. which shown an excellent agreement with fresh catalysts.

Journal of Porous Materials published new progress about [3+2] Cycloaddition reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, SDS of cas: 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Tu, Julian published the artcileStable, Reactive, and Orthogonal Tetrazines: Dispersion Forces Promote the Cycloaddition with Isonitriles, Recommanded Product: Picolinonitrile, the main research area is tetrazine cycloaddition isonitrile protein labeling; bioconjugation; bioorthogonal chemistry; chemoselectivity; cycloadditions; dispersion forces.

The isocyano group is a structurally compact bioorthogonal functional group that reacts with tetrazines under physiol. conditions. Now it is shown that bulky tetrazine substituents accelerate this cycloaddition Computational studies suggest that dispersion forces between the isocyano group and the tetrazine substituents in the transition state contribute to the atypical structure-activity relationship. Stable asym. tetrazines that react with isonitriles at rate constants as high as 57 L mol-1 s-1 were accessible by combining bulky and electron-withdrawing substituents. Sterically encumbered tetrazines react selectively with isonitriles in the presence of strained alkenes/alkynes, which allows for the orthogonal labeling of three proteins. The established principles will open new opportunities for developing tetrazine reactants with improved characteristics for diverse labeling and release applications with isonitriles.

Angewandte Chemie, International Edition published new progress about [4+1] Cycloaddition reaction. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Recommanded Product: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts