Academic literature on the topic 'Aliphatic nitriles'

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Journal articles on the topic "Aliphatic nitriles"

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Bhalla, Tek Chand, and Harish Kumar. "Nocardia globerula NHB-2: a versatile nitrile-degrading organism." Canadian Journal of Microbiology 51, no. 8 (2005): 705–8. http://dx.doi.org/10.1139/w05-046.

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A versatile nitrile-degrading bacterium was isolated by enrichment culture from the soil of a forest near Manali, Himachal Pradesh, India, and was identified as Nocardia globerula. This organism contains 3 enzymes with nitrile-degrading activity: nitrilase, nitrile hydratase, and amidase. Nocardia globerula NHB-2 cells grown on nutrient broth supplemented with 1% glucose and 0.1% yeast extract exhibited nitrile hydratase–amidase activity specific for saturated aliphatic nitriles or amide, while addition of acetonitrile in nutrient broth yielded cells with nitrile hydratase–amidase that in addi
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Sharma, Nikhil, Neerja Thakur, Tilak Raj, Savitri, and Tek Chand Bhalla. "Mining of Microbial Genomes for the Novel Sources of Nitrilases." BioMed Research International 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/7039245.

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Next-generation DNA sequencing (NGS) has made it feasible to sequence large number of microbial genomes and advancements in computational biology have opened enormous opportunities to mine genome sequence data for novel genes and enzymes or their sources. In the present communication in silico mining of microbial genomes has been carried out to find novel sources of nitrilases. The sequences selected were analyzed for homology and considered for designing motifs. The manually designed motifs based on amino acid sequences of nitrilases were used to screen 2000 microbial genomes (translated to p
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Dhillon, Jasvinder, Suneel Chhatre, Rishi Shanker, and N. Shivaraman. "Transformation of aliphatic and aromatic nitriles by a nitrilase from Pseudomonas sp." Canadian Journal of Microbiology 45, no. 10 (1999): 811–15. http://dx.doi.org/10.1139/w99-087.

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A Pseudomonas sp. (S1) isolated from a garden soil possessed a unique nitrilase, which is capable of catalyzing the direct hydrolysis of both potassium and organic cyanides to their corresponding carboxylic acids and ammonia, without the formation of amide as an intermediate. The nitrilase was purified with 4.8% recovery in three steps from a cell extract of the strain. The relative mobility of the homogenous enzyme preparation in SDS and native polyacrylamide gels indicated molecular weight of 41 kDa, approximately. Pseudomonas sp. (S1) utilized all the nitriles as carbon and nitrogen sources
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Umesh Patil, Bharat Sonawane, Balaji Madje, and Sayujjata Vaidya. "One Pot Synthesis of Alkyl Nitriles." International Journal of Scientific Research in Science, Engineering and Technology 11, no. 5 (2024): 05–09. http://dx.doi.org/10.32628/ijsrset2411415.

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A one-pot synthesis method to produce alkyl nitriles using the corresponding aliphatic carboxylic acid has been developed. The process involves treating the aliphatic acid with thionyl chloride to obtain the corresponding aliphatic acid chloride, which is then further treated with anhydrous ammonia gas to yield the respective aliphatic acid amide. The intermediate corresponding amide is dehydrated with thionyl chloride to obtain alkyl nitrile with a quantitative yield.
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Heinemann, Ute, Dirk Engels, Sibylle Bürger, Christoph Kiziak, Ralf Mattes, and Andreas Stolz. "Cloning of a Nitrilase Gene from the Cyanobacterium Synechocystis sp. Strain PCC6803 and Heterologous Expression and Characterization of the Encoded Protein." Applied and Environmental Microbiology 69, no. 8 (2003): 4359–66. http://dx.doi.org/10.1128/aem.69.8.4359-4366.2003.

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ABSTRACT The gene encoding a putative nitrilase was identified in the genome sequence of the photosynthetic cyanobacterium Synechocystis sp. strain PCC6803. The gene was amplified by PCR and cloned into an expression vector. The encoded protein was heterologously expressed in the native form and as a His-tagged protein in Escherichia coli, and the recombinant strains were shown to convert benzonitrile to benzoate. The active enzyme was purified to homogeneity and shown by gel filtration to consist probably of 10 subunits. The purified nitrilase converted various aromatic and aliphatic nitriles
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Oestreich, Martin, and Simon Wübbolt. "Exhaustive Chemoselective Reduction of Nitriles by Catalytic Hydrosilylation Involving Cooperative Si–H Bond Activation." Synlett 28, no. 18 (2017): 2411–14. http://dx.doi.org/10.1055/s-0036-1588441.

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A chemoselective method for the catalytic hydrosilylation of nitriles to either the imine or amine oxidation level is reported. The chemoselectivity is controlled by the hydrosilane used. The usefulness of the nitrile-to-amine reduction is demonstrated for a diverse set of aromatic and aliphatic nitriles, and the amines are easily isolated after hydrolysis as their hydrochloride salts. This exhaustive nitrile reduction proceeds at room temperature.
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Yeom, Soo-Jin, Hye-Jung Kim, Jung-Kul Lee, Dong-Eun Kim, and Deok-Kun Oh. "An amino acid at position 142 in nitrilase from Rhodococcus rhodochrous ATCC 33278 determines the substrate specificity for aliphatic and aromatic nitriles." Biochemical Journal 415, no. 3 (2008): 401–7. http://dx.doi.org/10.1042/bj20080440.

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Nitrilase from Rhodococcus rhodochrous ATCC 33278 hydrolyses both aliphatic and aromatic nitriles. Replacing Tyr-142 in the wild-type enzyme with the aromatic amino acid phenylalanine did not alter specificity for either substrate. However, the mutants containing non-polar aliphatic amino acids (alanine, valine and leucine) at position 142 were specific only for aromatic substrates such as benzonitrile, m-tolunitrile and 2-cyanopyridine, and not for aliphatic substrates. These results suggest that the hydrolysis of substrates probably involves the conjugated π-electron system of the aromatic r
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Zhao, Yiyong, Guangyao Mei, Haibo Wang, Guofu Zhang, and Chengrong Ding. "SO2F2-Promoted Dehydration of Aldoximes: A Rapid and Simple Access to Nitriles." Synlett 30, no. 12 (2019): 1484–88. http://dx.doi.org/10.1055/s-0037-1611840.

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A rapid, simple and mild process for the dehydration of aldoximes to give the corresponding nitriles, which utilizes SO2F2 as an efficient reagent, has been developed. A variety of (hetero)arene, alkene, alkyne and aliphatic aldoximes proceeded with high efficiency to afford nitriles in excellent to quantitative yields with great functional group compatibilities in acetonitrile under ambient conditions. Furthermore, an eco-friendly synthetic protocol to access nitriles from aldehydes with ortho-, meta- and para-nitrile groups was also described in aqueous methanol by using inorganic base Na2CO
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Selvam, Nagarajan Panneer, Sundar Saranya, and Paramasivan T. Perumal. "A convenient and efficient protocol for the synthesis of symmetrical N,N′-alkylidine bisamides by sulfamic acid under solvent-free conditions." Canadian Journal of Chemistry 86, no. 1 (2008): 32–38. http://dx.doi.org/10.1139/v07-134.

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A simple and convenient approach to the synthesis of symmetrical N,N′-alkylidine bisamides is described. Aromatic and aliphatic nitriles react with aromatic aldehydes in the presence of sulfamic acid to give the corresponding bisamides in moderate yields.Key words: alkylidine bisamides, nitrile, sulfamic acid.
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Wei, Xiu-Zhi, Jianguo Liu, and Longlong Ma. "One-Pot Tandem Synthesis of Nitriles and Amides from Biomass Platform Compounds." Catalysis Research 2, no. 1 (2021): 1. http://dx.doi.org/10.21926/cr.2201004.

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In recent years, research on converting biomass platform compounds into high-value chemicals and pharmaceutical intermediates has garnered huge interest. Nitrile and amide groups are key structures in natural products and biologically active molecules. The direct conversion of biomass platform compounds into nitriles and amides will undoubtedly be an important guide for biomass utilization. In this paper, a facile and efficient triphosgene-assisted one-pot conversion for aldehydes and ketones into nitrile and amides is presented. Triphosgene is a phosgene alternative that contains both ester l
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Dissertations / Theses on the topic "Aliphatic nitriles"

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Deverson, Clive Jeremy Francis. "Biotransformations of aliphatic nitriles and amides." Thesis, University of Kent, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304685.

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Kowlessur, Parikshant. "Engineering homoaromatic substrate specificity into aliphatic-specific Geobacillus pallidus RAPc8 nitrile hydratase." Thesis, University of the Western Cape, 2007. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9829_1297833530.

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<p>Geobacillus pallidus RAPc8 is a thermophilic nitrile-degrading isolate, obtained from thermal sediment samples of a New Zealand hot spring. The G. pallidus RAPc8 NHase gene has been cloned and expressed in E. coli. The recombinant NHase exhibits nitrile-degrading activity at 50 &deg<br>C, capable of degrading branched, linear and cyclic heteroaromatic nitrile substrates. However, no activity was found on homoaromatic nitrile substrates such as benzonitrile. In the present study, high levels of activity on benzonitrile were detected with a double mutant &beta<br>F52G&beta<br>F55L. Kinetic an
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Linton, E. A. "The utilization of aliphatic nitriles and amides by Nocardia rhodochrous LL100-21." Thesis, University of Kent, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371853.

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Hinzmann, Alessa [Verfasser]. "Chemoenzymatic cascade reactions towards aliphatic nitriles and amines starting from biorenewable resources / Alessa Hinzmann." Bielefeld : Universitätsbibliothek Bielefeld, 2020. http://d-nb.info/1221718983/34.

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Qin, Ke. "Cometabolic biodegradation of halogenated aliphatic hydrocarbons by ammonia-oxidizing microorganisms naturally associated with wetland plant roots." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1421094249.

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Brechot, Philippe. "Oxycarbonylation des olefines en presence de nitrites d'alkyle catalysee par les complexes du palladium." Paris 6, 1988. http://www.theses.fr/1988PA066107.

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Djaouadi, Djamal. "Réduction du valéronitrile en phase liquide sur des catalyseurs à base de nickel de Raney." Grenoble 1, 1993. http://www.theses.fr/1993GRE10006.

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La reduction catalytique en phase liquide du valeronitrile a ete etudiee sur nickel de raney dans le but d'obtenir selectivement l'amine primaire. L'effet de differents parametres de reaction sur la vitesse d'hydrogenation et la selectivite a ete examine et a permis de confirmer le reseau reactionnel complexe avec reversibilite des reactions. Des catalyseurs non dopes ou promus avec des elements metalliques (cr, fe, co, mo, ti. . . ) ont ete prepares a partir des phases metallurgiques ni#2al#3 ou nial#3. Les alliages et les catalyseurs ont ete caracterises par analyse chimique, stem-edx, xps,
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Lavigne, André. "Oxydations cupro-catalysees des amines aliphatiques : etudes mecanistiques et applications synthetiques." Paris 6, 1987. http://www.theses.fr/1987PA066470.

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Preparation de nitriles a partir d'amines primaires et d'alpha -aminoacides. Les acides amines monosubstutitues rch(nh::(2))co::(2)h donnent le nitrile rcn, alors que les acides amines disubstitues rr'c(nh::(2))co::(2)h conduisent a l'azine rr'c=n-n=cr'r. Les mecanismes proposes font intervenir le cuivre (iii), forme in situ a partir du cuivre (i) et de l'oxygene
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Book chapters on the topic "Aliphatic nitriles"

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Borron, Stephen W. "Cyanogenic aliphatic nitriles." In Toxicology of Cyanides and Cyanogens. John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118628966.ch12.

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Shang, Rui. "Synthesis of α-Aryl Nitriles and α-Aryl Acetate Esters Via Palladium-Catalyzed Decarboxylative Couplings of α-Cyano Aliphatic Carboxylate Salts and Malonate Monoester Salts with Aryl Halides." In Springer Theses. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-3193-9_6.

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North, M. "Nitriles: General Methods and Aliphatic Nitriles." In Comprehensive Organic Functional Group Transformations II. Elsevier, 2005. http://dx.doi.org/10.1016/b0-08-044655-8/00063-5.

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North, Michael. "Nitriles: General Methods and Aliphatic Nitriles." In Comprehensive Organic Functional Group Transformations. Elsevier, 1995. http://dx.doi.org/10.1016/b0-08-044705-8/00174-6.

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Bertus, P., F. Boeda, and M. S. M. Pearson-Long. "Alkylcyclopropylamines from Aliphatic Nitriles." In Compounds of Groups 7-3 (Mn..., Cr..., V..., Ti..., Sc..., La..., Ac...). Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-102-00126.

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Schmidt, A. "Synthesis of Aliphatic Nitriles." In Three Carbon-Heteroatom Bonds: Nitriles, Isocyanides, and Derivatives. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-019-00111.

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Subramanian, L. R. "From Aliphatic and Alicyclic Halides." In Three Carbon-Heteroatom Bonds: Nitriles, Isocyanides, and Derivatives. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-019-00128.

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Subramanian, L. R. "From Aliphatic and Alicyclic Amines." In Three Carbon-Heteroatom Bonds: Nitriles, Isocyanides, and Derivatives. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-019-00149.

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Sasano, Y., and Y. Iwabuchi. "1.8 Copper-Catalyzed Aerobic Oxidation of Alcohols." In Base-Metal Catalysis 1. Georg Thieme Verlag KG, 2023. http://dx.doi.org/10.1055/sos-sd-238-00150.

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AbstractThe oxidation of alcohols to carbonyl compounds is one of the most important reactions in organic synthesis. Owing to current environmental concerns, catalytic alcohol oxidation using molecular oxygen as the terminal oxidant has been actively investigated. Copper is frequently used as an aerobic oxidation catalyst in organic syntheses, as well as in biological systems. Co-catalysts acting in coordination with copper to promote the aerobic oxidation of alcohols have been extensively investigated, and in this context the use of nitroxyl radicals has been identified as a promising strateg
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Djaouadi, Djamel, and Michèle Besson. "Hydrogenation of Aliphatic Nitriles on Raney Nickel: Influence of Parent Alloys and Dopes on Activity and Selectivity." In Catalysis of Organic Reactions. Routledge, 2017. http://dx.doi.org/10.1201/9781315138855-39.

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Conference papers on the topic "Aliphatic nitriles"

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Soriaga, Manuel P., G. M. Berry, C. Bhardwaj, et al. "Chemisorption of Organic Molecules on Metal Electrode Surfaces." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90300.

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Abstract The chemisorption of various organic functional groups from aqueous solutions onto smooth single-crystal and polycrystalline electrodes, and the resistance of the resulting monolayer intermediates towards electrochemical oxidation have been studied; these investigations were motivated by the need to understand, at the atomic level, metal passivation by monolayer organic coatings. The electrodes employed were Rh, Pd, Ir, Pt, and Au whose anodic dissolution is preceded by surface-oxide formation even in highly acidic media. Resistance towards anodic oxidation can thus be associated with
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Groysman, A. "Protection of Structures from Corrosion in Wastes." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92430.

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Abstract The protective properties of waste- and atmosphere- resistant paint coatings (with rust converters) have been studied in laboratory and field conditions and have been examined at the purification installations for a long time (5-7 years). The protective properties of organic (NTPh - Nitrilo Trimethylene Phosphonic Acid, OEDPh - Oxy Ethylidene DiPhosphonic Acid, mixtures of aliphatic acids - wastes of petroleum manufacturing) and inorganic (phosphates, borates and some peroxosalts) corrosion inhibitors on carbon steel used for wastes of refineries and petroleum distributor enterprises
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Tenopir, T. J., and B. B. Bavarian. "Corrosion Prevention of Plain Carbon and Low Alloy Steels in the Marine Environment." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88397.

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Abstract Crevice, pitting, galvanic, intergranular and uniform corrosion occur at the Mk 26 Guided Missile Launching System (GMLS) guide arm assemblies due to inherent design deficiencies and normal interaction with the operating environment. Corrosion prevention in the guide arm assembly hydraulic access cover areas, which primarily suffer from pitting, crevice and intergranular attack was studied. 1008, 1018, ASTM A514 Grade B and ASTM A514 Grade E specimens were subjected to salt-spray, inhibitor and cathodic protection tests to evaluate various corrosion control measures. 3% by weight sodi
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Ivol, Flavien, Johan Jacquemin, and Fouad Ghamouss. "Binary Mixtures of Ionic Liquids (Ils) and Aliphatic Nitrile Solvents as Electrolytes for Supercapacitors." In 10TH International Conference on Sustainable Energy and Environmental Protection. University of Maribor Press, 2017. http://dx.doi.org/10.18690/978-961-286-052-3.11.

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Dlugosch, Julian M., Deepthi Devendra, Domenikos Chryssikos, et al. "Metallic Top Contacts to Self-Assembled Monolayers of Aliphatic Phosphonic Acids on Titanium Nitride." In 2020 IEEE 20th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2020. http://dx.doi.org/10.1109/nano47656.2020.9183521.

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BAMANE, SWAPNIL, KRISHAN KANHAIYA, HENDRIK HEINZ, and GREGORY ODEGARD. "FORCE FIELD PARAMETERIZATION AND MOLECULAR DYNAMICS SIMULATION OF EPOXY INTERACTION WITH BORON NITRIDE NANOTUBE SURFACES." In Proceedings for the American Society for Composites-Thirty Seventh Technical Conference. Destech Publications, Inc., 2022. http://dx.doi.org/10.12783/asc37/36444.

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Wettability is a key phenomenon in understanding solid-liquid interface behavior in composite materials and is important in the manufacturing of boron nitride nanotube (BNNT)-based composite materials. Wettability is often quantified by calculating the contact angle values of liquid resin droplets on reinforcement surfaces. Determining contact angle values using experimental techniques for nanomaterials like BNNT is challenging and costly. Computational simulations with interface calculation capabilities offer an easier approach to solve this problem. In this study, a molecular dynamics framew
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