Category: nitriles-buliding-blocks

《Lewis acid promoted dehydration of amides to nitriles catalyzed by [PSiP]-pincer iron hydrides》 was written by Chang, Guoliang; Li, Xiaoyan; Zhang, Peng; Yang, Wenjing; Li, Kai; Wang, Yajie; Sun, Hongjian; Fuhr, Olaf; Fenske, Dieter. HPLC of Formula: 1194-02-1 And the article was included in Applied Organometallic Chemistry in 2020. The article conveys some information:

The dehydration of primary amides to their corresponding nitriles using four [PSiP]-pincer hydrido iron complexes [(2-Ph2PC6H4)2MeSiFe(H)(PMe3)2, (2-Ph2PC6H4)2HSiFe(H)(PMe3)2, (2-(iPr)2PC6H4)2HSiFe(H)(PMe3)2 and (2-(iPr)2PC6H4)2MeSiFe(H)(PMe3)2] as catalysts in the presence of (EtO)3SiH as dehydrating reagent was explored in the good to excellent yields. It was proved for the first time that Lewis acid could significantly promote this catalytic system under milder reaction conditions than other Lewis acid-promoted system, such as shorter reaction time or lower reaction temperature This was also the first example that dehydration of primary amides to nitriles RCN [R = 4-ClC6H4, 2-thienyl, Bn, etc.] was catalyzed by silyl hydrido iron complexes bearing [PSiP]-pincer ligands with Lewis acid as additive. This catalytic system had good tolerance for many substituents. Among the four iron hydrides (2-Ph2PC6H4)2MeSiFe(H)(PMe3)2 was the best catalyst. The effects of substituents of the [PSiP]-pincer ligands on the catalytic activity of the iron hydrides were discussed. A catalytic reaction mechanism was proposed. Complex (2-(iPr)2PC6H4)2MeSiFe(H)(PMe3)2 was a new iron complex and was fully characterized. The mol. structure of complex (2-(iPr)2PC6H4)2MeSiFe(H)(PMe3)2 was determined by single crystal X-ray diffraction.4-Fluorobenzonitrile(cas: 1194-02-1HPLC of Formula: 1194-02-1) was used in this study.

4-Fluorobenzonitrile(cas: 1194-02-1) is used as chemical intermediate, solvent for perfumes and pharmaceuticals, stabilizer for chlorinated solvents, HPLC analysis, catalyst and component of transition-metal complex catalysts.HPLC of Formula: 1194-02-1

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《Synergetic Covalent and Spatial Confinement of Sulfur Species by Phthalazinone-Containing Covalent Triazine Frameworks for Ultrahigh Performance of Li-S Batteries》 was written by Guan, Ruiteng; Zhong, Lei; Wang, Shuanjin; Han, Dongmei; Xiao, Min; Sun, Luyi; Meng, Yuezhong. Recommanded Product: 1194-02-1 And the article was included in ACS Applied Materials & Interfaces in 2020. The article conveys some information:

Lithium-sulfur (Li-S) batteries severely suffer from the shuttling of soluble polysulfides intermediates, insulation of sulfur and lithium sulfides, and volumetric expansion of sulfur electrodes, which result in the fast capacity decay and low utilization of active materials. To overcome these issues, a new type of porous phthalazinone-based covalent triazine frameworks (P-CTFs) with inherent N and O atoms has been in situ grown onto conductive reduced graphene oxide (rGO) by the sulfur-mediated cyclization of dinitrile monomers to afford the S/P-CTF@rGO hybrids. The well-designed structure endows the S/P-CTF@rGO composites with several features for enhanced Li-S batteries: (i) the nanoporous structure can spatially trap the sulfur species within the P-CTFs; (ii) the covalent binding of sulfur and polar groups of phthalazinone and triazine in P-CTFs exhibits strong chem. attachment and adsorption with polysulfides and further limits the diffusion of polysulfides; (iii) the conductive rGO and semiconductive P-CTFs help faster electronic transportation and accelerate the electrochem. process. Therefore, the S/P-CTF@rGO cathodes show greatly enhanced electrochem. performances with a high initial specific capacity of 1130 mAh g-1 at 0.5C and a good capacity retention of 81.4% after 500 cycles, indicating only 0.04% degradation per cycle. In the experimental materials used by the author, we found 4-Fluorobenzonitrile(cas: 1194-02-1Recommanded Product: 1194-02-1)

4-Fluorobenzonitrile(cas: 1194-02-1) is used as chemical intermediate, solvent for perfumes and pharmaceuticals, stabilizer for chlorinated solvents, HPLC analysis, catalyst and component of transition-metal complex catalysts.Recommanded Product: 1194-02-1

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《Metal-Free and Regioselective Synthesis of Substituted and Fused Chromenopyrrole Scaffolds via the Divergent Reactivity of α-Azido Ketones in Water》 was published in Journal of Organic Chemistry in 2020. These research results belong to Dhanasekar, Elumalai; Kannan, Tharanikkarasu; Venkatesan, Rengarajan; Perumal, Paramasivam Thirumalai; Kamalraja, Jayabal. Safety of 3-Oxo-3-phenylpropanenitrile The article mentions the following:

A green and simple approach was developed for the regioselective synthesis of structurally diverse chromenopyrrole frameworks from 3-formylchromones, active methylenes and α-azido ketones using piperidine as a catalyst in the aqueous medium through a tandem one pot multi-component reaction. Further, the synthesized pyrrole framework was successfully converted into biol. significant 6-azaindole derivatives in simple synthetic transformation. An exciting feature of this synthetic protocol is that the reaction mechanism and formation of the products depend on the nature of the active methylene used. This approach has several advantages such as transition metal-free catalyst, a short reaction time, easy separation, an excellent yield, practically simple execution, high regioselectivity, very good atom economy, low E-factor, and no requirement of toxic solvents and chromatog. purification The experimental part of the paper was very detailed, including the reaction process of 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4Safety of 3-Oxo-3-phenylpropanenitrile)

3-Oxo-3-phenylpropanenitrile(cas: 614-16-4) has been used to produce 2-benzoyl-3-furan-2-yl-acrylonitrile. It is an active methylene compound, useful in heterocyclic synthesis, e.g. polyfunctional pyridines and pyrimidines.Safety of 3-Oxo-3-phenylpropanenitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《Umpolung Strategy with 2-Aminothiophenols: Access to 2-Arylbenzothiazine Derivatives from Alkyl Aryl Ketones》 was published in Advanced Synthesis & Catalysis in 2020. These research results belong to Nguyen, Thanh Binh; Retailleau, Pascal. Application In Synthesis of 3-Oxo-3-phenylpropanenitrile The article mentions the following:

Strong Broensted acids were found to catalyze the oxidative condensation of 2-aminothiophenols with aryl alkyl ketones in DMSO to provide a wide range of complex 2-arylbenzothiazines I [R = H, Cl; R1 = 4-FC6H4, 4-MeC6H4, 2-thienyl, etc.]. With acetophenones, dimeric 2-arylbenzothiazines II [Ar = Ph, 4-FC6H4, 4-ClC6H4, 4-OMeC6H4] were formed. On the other hand, the reaction with propiophenones resulted in 2:1 adducts whereas 1:1 adducts were produced with isobutyrophenones, benzoylacetonitrile and Et benzoylacetate. In addition to this study using 3-Oxo-3-phenylpropanenitrile, there are many other studies that have used 3-Oxo-3-phenylpropanenitrile(cas: 614-16-4Application In Synthesis of 3-Oxo-3-phenylpropanenitrile) was used in this study.

3-Oxo-3-phenylpropanenitrile(cas: 614-16-4) has been used to produce 2-benzoyl-3-furan-2-yl-acrylonitrile. It is an active methylene compound, useful in heterocyclic synthesis, e.g. polyfunctional pyridines and pyrimidines.Application In Synthesis of 3-Oxo-3-phenylpropanenitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《General Method for Enantioselective Three-Component Carboarylation of Alkenes Enabled by Visible-Light Dual Photoredox/Nickel Catalysis》 was published in Journal of the American Chemical Society in 2020. These research results belong to Guo, Lei; Yuan, Mingbin; Zhang, Yanyan; Wang, Fang; Zhu, Shengqing; Gutierrez, Osvaldo; Chu, Lingling. Application of 623-00-7 The article mentions the following:

A visible-light-promoted photoredox/nickel protocol for the enantioselective three-component carboarylation of alkenes with tertiary and secondary alkyltrifluoroborates and aryl bromides is described. This redox-neutral protocol allows for facile and divergent access to a wide array of enantioenriched β-alkyl-α-arylated carbonyls, phosphonates, and sulfones in high yields and excellent enantioselectivities from readily available starting materials. We also report a modular and enantioselective synthesis of flurbiprofen analogs and piragliatin lead compound to demonstrate synthetic utility. Exptl. and computational mechanistic studies were performed to gain insights into the mechanism and origin of chemo- and enantioselectivity. The experimental process involved the reaction of 4-Bromobenzonitrile(cas: 623-00-7Application of 623-00-7)

4-Bromobenzonitrile(cas: 623-00-7) is classified as organic nitriles, which are commonly use solvents and are reacted further for various applications such as manufacture of polymers and intermediates for pharmaceuticals and other organic chemicals,Application of 623-00-7 It can also be used as an aryl halide test compound in developing greener reaction conditions for Suzuki cross-coupling between aryl halides and phenyl boronic acid.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In 2019,Journal of Organic Chemistry included an article by Timelthaler, Daniel; Topf, Christoph. SDS of cas: 1194-02-1. The article was titled 《Liquid-Phase Hydrogenation of Nitriles to Amines Facilitated by a Co(II)/Zn(0) Pair: A Ligand-Free Catalytic Protocol》. The information in the text is summarized as follows:

The given report introduces a simple and user-friendly in situ method for the production of catalytically active cobalt particles. The approach circumvents the use of air- and moisture-sensitive reductants as well as the application of anhydrous Co-precursor salts. Accordingly, the described catalytic system is readily assembled under open-flask conditions by simply combining the components in the reaction vessel. Therefore, the arduous charging procedure of the reaction autoclave in a glovebox under an inert gas atm. is no longer necessary. In fact, the catalytically active material is obtained upon treatment of readily available Co(OAc)2·4 H2O with benign com. Zn powder. The catalytic performance of the resultant material was tested in the heterogeneous hydrogenation of nitriles to the corresponding primary amines. Both activity and selectivity of the cobalt catalyst are significantly enhanced if a triflate-based Lewis acid and ammonia is added to the reaction mixture The results came from multiple reactions, including the reaction of 4-Fluorobenzonitrile(cas: 1194-02-1SDS of cas: 1194-02-1)

4-Fluorobenzonitrile(cas: 1194-02-1) is used as chemical intermediate, solvent for perfumes and pharmaceuticals, stabilizer for chlorinated solvents, HPLC analysis, catalyst and component of transition-metal complex catalysts.SDS of cas: 1194-02-1

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Zhu, Yongbao; Cameron, Beth R.; Skerlj, Renato T. published an article in Journal of Organometallic Chemistry. The title of the article was 《Cycloauration of substituted 2-phenoxypyridine derivatives and X-ray crystal structure of gold, dichloro[2-[[5-[(cyclopentylamino)carbonyl]-2-pyridinyl-κN]oxy]phenyl-κC]-, (SP-4-3)-》.Recommanded Product: 6-Phenoxynicotinonitrile The author mentioned the following in the article:

Direct cycloauration of 2-phenoxypyridines with different substituents at the 5-position of the pyridine ring was carried out in an CH3CN/H2O medium, leading to isolation of cycloaurated compounds AuCl2(L) (HL = substituted 2-phenoxypyridine ligand) with alkyl, substituted alkyl, Ph, halo, ester, and amido groups. Preparation of cycloaurated compounds involved formation of an intermediate AuCl3(HL) via coordination reaction between the pyridine ligand and NaAuCl4 at room temperature and subsequent formation of the Au-C bond at elevated temperature in an CH3CN/H2O medium. The presence of a bulky lipophilic group decreased the yield of cycloaurated compounds and favored decomposition of the reaction species to Au(0). No coordination reaction was observed for ligands with a strong electron-withdrawing substituent (nitro or nitrile) in the pyridine ring. The ligand having the electron-donating dimethylamino group was oxidized by NaAuCl4 at room temperature The presence of a thienyl or an acetyl group allowed the isolation of the intermediate AuCl3(HL), but had an adverse effect on the subsequent cycloauration. The result of direct cycloauration of methyl-substituted 2-phenoxypyridine ligands indicated that the presence of a Me group at the 6-position in the pyridine ring closest to the Au-N(py) bond resulted in poor cycloauration and a decrease in compound stability. The X-ray crystal structure of cycloaurated compound AuCl2L (L = [2-[[5-[(cyclopentylamino)carbonyl]-2-pyridinyl-κN]oxy]phenyl-κC]) 1 was determined, depicting a four-coordinate Au atom located in the center of a slightly distorted square. The results came from multiple reactions, including the reaction of 6-Phenoxynicotinonitrile(cas: 99902-72-4Recommanded Product: 6-Phenoxynicotinonitrile)

6-Phenoxynicotinonitrile(cas: 99902-72-4) belongs to nitriles. Nitriles are found in many useful compounds. Nitrile rubber is also widely used as automotive and other seals since it is resistant to fuels and oils. Recommanded Product: 6-Phenoxynicotinonitrile Industrially, the main methods for producing nitriles are ammoxidation and hydrocyanation. Both routes are green in the sense that they do not generate stoichiometric amounts of salts.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Safety of 3-Chloro-4-fluorophenylacetonitrileOn September 25, 2008 ,《Enantiomeric Propanolamines as selective N-Methyl-D-aspartate 2B Receptor Antagonists》 was published in Journal of Medicinal Chemistry. The article was written by Tahirovic, Yesim A.; Geballe, Matthew; Gruszecka-Kowalik, Ewa; Myers, Scott J.; Lyuboslavsky, Polina; Le, Phuong; French, Adam; Irier, Hasan; Choi, Woo-baeg; Easterling, Keith; Yuan, Hongjie; Wilson, Lawrence J.; Kotloski, Robert; McNamara, James O.; Dingledine, Raymond; Liotta, Dennis C.; Traynelis, Stephen F.; Snyder, James P.. The article contains the following contents:

Enantiomeric propanolamines have been identified as a new class of NR2B-selective NMDA receptor antagonists. The most effective agents are biaryl structures, synthesized in six steps with overall yields ranging from 11-64%. The compounds are potent and selective inhibitors of NR2B-containing recombinant NMDA receptors with IC50 values between 30-100 nM. Potency is strongly controlled by substitution on both rings and the centrally located amine nitrogen. SAR anal. suggests that well-balanced polarity and chain-length factors provide the greatest inhibitory potency. Structural comparisons based on 3D shape anal. and electrostatic complementarity support this conclusion. The antagonists are neuroprotective in both in vitro and in vivo models of ischemic cell death. In addition, some compounds exhibit anticonvulsant properties. Unlike earlier generation NMDA receptor antagonists and some NR2B-selective antagonists, the present series of propanolamines does not cause increased locomotion in rodents. Thus, the NR2B-selective antagonists exhibit a range of therapeutically interesting properties. The experimental process involved the reaction of 3-Chloro-4-fluorophenylacetonitrile(cas: 658-98-0Safety of 3-Chloro-4-fluorophenylacetonitrile)

3-Chloro-4-fluorophenylacetonitrile(cas: 658-98-0) belongs to nitriles. Nitriles are found in many useful compounds. Nitrile rubber is also widely used as automotive and other seals since it is resistant to fuels and oils. Organic compounds containing multiple nitrile groups are known as cyanocarbons.Safety of 3-Chloro-4-fluorophenylacetonitrile

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《Stacking MFI zeolite structures for improved Sonogashira coupling reactions》 was written by Jia, Xicheng; Jiang, Dahong; Tsang, Daniel C. W.; Choi, Jungkyu; Yip, Alex C. K.. HPLC of Formula: 2042-37-7This research focused onZSM5 stacking support palladium catalyst preparation crystallinity; phenylacetylene bromobenzene palladium catalyst Sonogashira coupling; diphenylacetylene preparation. The article conveys some information:

A zeolite with stacking structure was designed by using hydraulic pressing and programmed temperature calcination synthesis procedures. ZSM-5 type zeolites with particle sizes of approx. 100 nm, 1 μm and 2 μm were used to synthesize stacking ZSM-5 with a size ranging from 45 to 63 μm. The prepared ZSM-5 zeolite stacking structure was used as a support to deposit palladium. The performance of the palladium/stacking ZSM-5 was investigated on Sonogashira coupling reactions. Stacking samples with micro-sized units (1 μm and 2 μm) showed a 200-300% higher turnover number (TON) than their unit counterparts. However, stacking samples with nano-sized units (100 nm) showed decreased TON conversion compared with that of their unit counterparts, probably due to partial destruction of the nano-sized ZSM-5 structure during the stacking synthesis process at high temperature The palladium/stacking ZSM-5 (micro-sized units) also showed better conversion on different bromides and alkynes than that of traditional homogenous catalysts. Moreover, the stacking composites showed good durability by recycling 4 runs without losing significant catalytic activity. The design of the stacking MFI structure exhibited improved catalytic activity, sustainability and hierarchical-resemblance properties. In the part of experimental materials, we found many familiar compounds, such as 2-Bromobenzonitrile(cas: 2042-37-7HPLC of Formula: 2042-37-7)

2-Bromobenzonitrile(cas: 2042-37-7) belongs to a group of ortho-substituted bromobenzenes that have varying hepatotoxicity effects in the presence of rat liver microsomes in vitro. 2-Bromobenzonitrile is also used as a starting material to synthesize novel benzothiophene derivatives that were found to exhibit antibacterial and antifungal activity.HPLC of Formula: 2042-37-7

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

《Organophotoredox-Catalyzed Reductive Tetrafluoroalkylation of Alkenes》 was published in Journal of Organic Chemistry in . These research results belong to Kostromitin, Vladislav S.; Levin, Vitalij V.; Dilman, Alexander D.. Electric Literature of C43H30F2N4 The article mentions the following:

A method for the hydroperfluoroalkylation of alkenes with 1,2-dibromotetrafluoroethane leading to tetrafluorinated bromides is described. The reaction is conveniently performed under blue light irradiation using an organic photocatalyst and ascorbic acid as a reducing agent. Primary products can be further functionalized via radical pathways affording various tetrafluorinated compounds The experimental part of the paper was very detailed, including the reaction process of 2,4,6-Tris(diphenylamino)-3,5-difluorobenzonitrile(cas: 1403850-00-9Electric Literature of C43H30F2N4)

2,4,6-Tris(diphenylamino)-3,5-difluorobenzonitrile(cas: 1403850-00-9) is cyanoarene-based donor-acceptor photocatalyst developed by the Zeitler group. While this catalyst has a balanced redox profile, allowing for its use in a variety of transformations, it stands out as the most reducing catalyst of the family.Electric Literature of C43H30F2N4

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts