Author: Jessica.F

Ferris, J. P. published the artcileThe effect of clays on the oligomerization of hydrocyanic acid, Name: 2-Aminomalononitrile 4-methylbenzenesulfonate, the publication is Journal of Molecular Evolution (1979), 13(4), 317-30, database is CAplus and MEDLINE.

The possible role of clays in prebiotic evolution was studied using the primitive Earth model in which aqueous solutions of HCN and diaminomaleonitrile (I) react with clay mineral sediments. The reaction of 0.1M HCN and dilute solutions of I at pH 8-9 and 25° in the presence of suspensions of montmorillonite (bentonite) clays were investigated. Montmorillonite clays inhibited the oligomerization of aqueous solutions of HCN. Yields of colored oligomers, urea, and I were all diminished by clays, but the rate of loss of cyanide was not significantly decreased. The inhibition of oligomer formation was due to the clay-catalyzed decomposition of I. The absence of strong binding of I to clays was suggested by the failure to detect I when a clay that was incubated with I was washed with spermidine (6 × 10^-3 g/L). I did not simply bind to the clays as the bulk of radioactivity was recovered from the supernatant in the reaction of I–¹⁴C with montmorillonite. The clay-catalyzed decomposition of I was observed when montmorillonite from 2 different sources was used and with a variety of homoionic montmorillonites and bentonites. A modification of the established procedure for using the cyanide electrode for cyanide analyses was used to follow the release of HCN from I. This new method could be used in both the acidic and basic pH range and did not result in the destruction of I by the reagents used for the anal. Quant. anal. of the reaction solution from the clay-catalyzed decompositions of I revealed the formation of 1-2 equiv HCN/mol I. The possible significance of these clay-catalyzed reactions in prebiotic evolution is discussed.

Journal of Molecular Evolution published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C10H11N3O3S, Name: 2-Aminomalononitrile 4-methylbenzenesulfonate.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Liao, Tzu-Ying published the artcileAminomalononitrile-Assisted Multifunctional Antibacterial Coatings, Synthetic Route of 5098-14-6, the publication is ACS Biomaterials Science & Engineering (2020), 6(6), 3349-3360, database is CAplus and MEDLINE.

Medical device associated infections remain a significant problem for all classes of devices at this point in time. Here, we have developed a surface modification technique to fabricate multifunctional coatings that combine antifouling and antimicrobial properties. Zwitterionic polymers providing antifouling properties and quaternary ammonium containing polymers providing antimicrobial properties were combined in these coatings. Throughout this study, aminomalononitrile (AMN) was used to achieve one-step coatings incorporating different polymers. The characterization of coatings was carried out using static water contact angle (WCA) measurements, XPS, profilometry, and SEM, whereas the biol. response in vitro was analyzed using Staphylococcus epidermidis and Escherichia coli as well as L929 fibroblast cells. Zwitterionic polymers synthesized from sulfobetaine methacrylate and 2-aminoethyl methacrylate were demonstrated to reduce bacterial attachment when incorporated in AMN assisted coatings. However, bacteria in suspension were not affected by this approach. On the other hand, alkylated polyethylenimine polymers, synthesized to provide quaternary ammonium groups, were demonstrated to have contact killing properties when incorporated in AMN assisted coatings. However, the high bacterial attachment observed on these surfaces may be detrimental in applications requiring longer-term bactericidal activity. Therefore, AMN-assisted coatings containing both quaternary and zwitterionic polymers were fabricated. These multifunctional coatings were demonstrated to significantly reduce the number of live bacteria not only on the modified surfaces, but also in suspension. This approach is expected to be of interest in a range of biomedical device applications.

ACS Biomaterials Science & Engineering published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C10H11N3O3S, Synthetic Route of 5098-14-6.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Taylor, Edward C. published the artcilePteridines. 49. Synthesis of 2,4-diamino-6,8-dihydro-7-aryl-8-oxopyrrolo[3,4-g]pteridines, Application In Synthesis of 5098-14-6, the publication is Journal of Organic Chemistry (1982), 47(1), 116-19, database is CAplus.

Reaction of Et 4-chloro-2-oximino-3-oxobutyrate with aminomalononitrile tosylate followed by deoxygenation of the resulting pyrazine 1-oxide provides the cyanopyrazine (I). Treatment of I with arylamines gives the (arylaminomethyl)cyanopyrazines II (R = H, Me) which are readily cyclized to the oxopyrrolopyrazines III. Condensation of III with guanidine acetate in DMF then provides the title compounds IV (R = H, Me).

Journal of Organic Chemistry published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C23H28N2O4, Application In Synthesis of 5098-14-6.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Taylor, Edward C. published the artcilePteridines. 47. Preparation and chemistry of 2-amino-6-carbalkoxy-3-cyano-5-substituted pyrazine 1-oxides: synthesis of pterin-6-carboxaldehyde, HPLC of Formula: 5098-14-6, the publication is Journal of Organic Chemistry (1980), 45(12), 2485-9, database is CAplus.

A new procedure for the synthesis of 2-amino-3-cyano-5-substituted pyrazines I [R = CH(OMe)₂, Me], useful intermediates for the synthesis of pteridines, is described. Oximation of β-oxo esters followed by reaction with aminomalononitrile provides 2-amino-6-carbalkoxy-3-cyano-5-substituted pyrazine 1-oxides II. Protection of the amino group as its (dimethylamino)methylenamino derivative I followed by S_N2 decarbalkoxylation provides pyrazines, which on removal of the protecting group and deoxygenation give pyrazines III. This method is designed to be of use in cases where the β-oxo ester cannot be converted directly to the corresponding α-oxo aldoxime. The procedure is applied to the synthesis of III [R = CH(OMe)₂], an intermediate in the synthesis of pterin-6-carboxaldehyde.

Journal of Organic Chemistry published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C5H8N2O, HPLC of Formula: 5098-14-6.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Taylor, Edward C. published the artcilePteridines. 48. Utilization of 3,3-dimethoxy-2-pyrrolidinopropene for the synthesis of folic acid, N²‘-acetyl-7-folic acid, and 5-deaza-7-folic acid, Recommanded Product: 2-Aminomalononitrile 4-methylbenzenesulfonate, the publication is Journal of Organic Chemistry (1981), 46(7), 1394-402, database is CAplus.

Pyrrolidinopropene I was treated with NOCl and hydrolyzed to give (MeO)₂CHCOCH:NOH which was treated with NCCH(NH₂)CN to give II, a known precursor for III (R = CHO, R¹ = H). Treating I with 4-MeC₆H₄SO₃N:C(CN)₂ and then with NH₄OH gave IV [R² = H, R³ = (MeO)₂CH] which gave III (R = H, R¹ = CHO) (V) by guanidine cyclization. VI (R⁴ = CHO, R⁵ = H, X = CH) was prepared by treating I with MeOCH:C(CN)₂ followed by cyclizing with NH₄OH to give VII which was treated with HN:C(NH₂)₂, NaOH, and then HCl. Refluxing V with Ac₂O followed by condensation with 4-H₂NC₆H₄COGlu(OCMe₃)OCMe₃ gave VI (R⁴ = CH:NC₆H₄CO-Glu(OCMe₃)OCMe₃-4, R⁵ = Ac, X = N] which was reduced by NaBH₄ to give 37% VI (R⁴ = CH₂NHC₆H₄CO-Glu(OCMe₃)OCMe₃-4]. Similarly refluxing VI (R⁴ = CHO, R⁵ = H, X = CH) with 4-H₂NC₆H₄CO-Glu(OMe)OMe followed by reduction by NaBH₄ gave ∼40% VI [R⁴ = CH₂NHC₆H₄CO-Glu(OMe)OMe-4].

Journal of Organic Chemistry published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C8H8O3, Recommanded Product: 2-Aminomalononitrile 4-methylbenzenesulfonate.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Ji, Xiaoyun published the artcileHighly regioselective aminobromination of α,β-unsaturated nitro compounds with benzyl carbamate/N-bromosuccinimide as nitrogen/bromine source, Category: nitriles-buliding-blocks, the publication is RSC Advances (2012), 2(13), 5565-5570, database is CAplus.

Aminobromination of α,β-unsaturated nitro compounds with benzyl carbamate and N-bromosuccinimide as nitrogen/bromine sources was reported. This new catalytic system tolerates a wide range of aromatic substrates, as well as heterocyclic and aliphatic substrates, resulting in good chem. yields. The reaction also proceeds smoothly with water as a medium in high efficiency. This practical aminobromination method was also suitable for large-scale preparation Furthermore, the N-carbobenzoxy protecting group could be easily cleaved to afford the free vicinal haloamines.

RSC Advances published new progress about 5153-73-1. 5153-73-1 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Alkenyl,Nitro Compound,Benzene, name is (E)-4-(2-Nitrovinyl)benzonitrile, and the molecular formula is C9H6N2O2, Category: nitriles-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Zhang, Jin-Jiang published the artcileTransition-metal free C-C bond cleavage/borylation of cycloketone oxime esters, HPLC of Formula: 238088-16-9, the publication is Chemical Science (2019), 10(1), 161-166, database is CAplus and MEDLINE.

An efficient transition-metal free C-C bond cleavage/borylation of cycloketone oxime esters has been described. In this reaction, the tetrahydroxydiborane (B₂(OH)₄) reagent not only served as the boron source but also acted as an electron donor source through formation of a complex with a N,N-dimethylacetamide (DMAc)-like Lewis base. This complex could be used as an efficient single electron reductant in other ring-opening transformations of cycloketone oxime esters. Free-radical trapping, radical-clock, and DFT calculations all suggest a radical pathway for this transformation.

Chemical Science published new progress about 238088-16-9. 238088-16-9 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Boronic acid and ester,Aliphatic cyclic hydrocarbon,Boronic Acids,Boronate Esters, name is 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)butanenitrile, and the molecular formula is C9H9BrO2, HPLC of Formula: 238088-16-9.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Zheng, Tucai published the artcileSynthesis and characterization of o-aryloxymethylbenzonitriles, Quality Control of 612-13-5, the publication is Xiandai Huagong (2010), 30(7), 35-37, database is CAplus.

Six o-aryloxymethylbenzonitriles are synthesized from o-cyanobenzyl chloride, phenol and substituted phenols and anhydrous potassium carbonate in N, N-dimethylformamide solvent via Williamson reactions. The yields of all six compounds are over 98%, and among them five compounds have not been previously reported. The products are characterized.

Xiandai Huagong published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C4H4N2O2, Quality Control of 612-13-5.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Khomenko, Dmytro M. published the artcileSynthesis of α-substituted 2-(1H-1,2,4-triazol-3-yl)acetates and 5-amino-2,4-dihydro-3H-pyrazol-3-ones via the Pinner strategy, Application In Synthesis of 30431-99-3, the publication is Tetrahedron Letters (2021), 152956, database is CAplus and MEDLINE.

A series of 2-(1H-1,2,4-triazol-3-yl)acetates, as well as 4-mono- and 4,4-disubstituted 5-amino-2,4-dihydro-3H-pyrazol-3-ones (including spirocyclic derivatives) I [R¹ = H, i-Pr, Me; R² = H, Me; R¹R² = -(CH₂)₂-, -(CH₂)₃-, -(CH₂)₂O(CH₂)₂-] have been synthesized using the Pinner reaction strategy. α-Mono- and α,α-disubstituted Et cyanoacetates NCC(R¹)(R²)C(O)OEt were converted into the corresponding carboxyimidate salts EtOC(=NH)C(R¹)(R²)C(O)OEt.HCl that served as the key intermediates. Their further reaction with formylhydrazide or hydrazine hydrate provided triazolylacetates I or aminopyrazolones (including spirocyclic derivatives) II, depending on the structure of the starting Pinner salt and the nature of the nucleophile. The scope and limitations of the developed synthetic method have been established.

Tetrahedron Letters published new progress about 30431-99-3. 30431-99-3 belongs to nitriles-buliding-blocks, auxiliary class Tetrahydropyran,Nitrile,Ester, name is Ethyl 4-cyanotetrahydro-2H-pyran-4-carboxylate, and the molecular formula is C9H13NO3, Application In Synthesis of 30431-99-3.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Costentin, Cyrille published the artcilePassage from stepwise to concerted dissociative electron transfer through modulation of electronic states coupling, Product Details of C8H6ClN, the publication is Chemistry – A European Journal (2009), 15(3), 785-792, database is CAplus and MEDLINE.

Reductive cleavage of the three cyanobenzyl chloride isomers in N,N-dimethylformamide gives new insights into the factors that control the mechanism during dissociative electron transfer. Within the family of investigated compounds, electrochem. reduction leads to expulsion of the chloride ion. While electron transfer is concerted with breaking of the C-Cl bond and acts as the rate-determining step in the case of both the ortho and para isomers, an intermediate anion radical is formed before rapid fragmentation in the case of the meta isomer. Such an unexpected mechanistic shift (all key thermodn. parameters are very similar for the three chlorides) is interpreted in the framework of a modified version of the dissociative electron-transfer model that includes electronic coupling effects between the diabatic states of the products. These effects appear to control the very existence of a transient species along the reaction pathway.

Chemistry – A European Journal published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C8H6ClN, Product Details of C8H6ClN.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts