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Artykuły w czasopismach na temat „Amides”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Barham, Joshua P., та Jaspreet Kaur. "Site-Selective C(sp3)–H Functionalizations Mediated by Hydrogen Atom Transfer Reactions via α-Amino/α-Amido Radicals". Synthesis 54, № 06 (2021): 1461–77. http://dx.doi.org/10.1055/a-1677-6619.

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AbstractAmines and amides, as N-containing compounds, are ubiquitous in pharmaceutically-active scaffolds, natural products, agrochemicals, and peptides. Amides in nature bear a key responsibility for imparting three-dimensional structure, such as in proteins. Structural modifications to amines and amides, especially at their positions α to N, bring about profound changes in biological activity oftentimes leading to more desirable pharmacological profiles of small drug molecules. A number of recent developments in synthetic methodology for the functionalizations of amines and amides omit the n

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2

Zhou, Yongyun, Ruhima Khan, Baomin Fan, and Lijin Xu. "Ruthenium-Catalyzed Selective Reduction of Carboxylic Esters and Carboxamides." Synthesis 51, no. 12 (2019): 2491–505. http://dx.doi.org/10.1055/s-0037-1611524.

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Amines and alcohols are important classes of building blocks in organic synthesis. The synthesis of these compounds has been a topic of interest. A straightforward method for their synthesis is the reduction of esters and amides to alcohols and amines, respectively. Various transition-metal catalysts have been developed for the homogeneous hydrogenation of esters and amides to alcohols and amines. In this review, an overview of the ruthenium-catalyzed selective hydrogenation of esters and amides is provided.1 General Introduction2 Ru-Catalyzed Reduction of Esters3 Ru-Catalyzed Selective Reduct

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3

Zarecki, Adam P., Jacek L. Kolanowski, and Wojciech T. Markiewicz. "Microwave-Assisted Catalytic Method for a Green Synthesis of Amides Directly from Amines and Carboxylic Acids." Molecules 25, no. 8 (2020): 1761. http://dx.doi.org/10.3390/molecules25081761.

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Amide bonds are among the most interesting and abundant molecules of life and products of the chemical pharmaceutical industry. In this work, we describe a method of the direct synthesis of amides from carboxylic acids and amines under solvent-free conditions using minute quantities of ceric ammonium nitrate (CAN) as a catalyst. The reactions are carried out in an open microwave reactor and allow the corresponding amides to be obtained in a fast and effective manner when compared to other procedures of the direct synthesis of amides from acids and amines reported so far in the literature. The

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4

Orsy, György, Sayeh Shahmohammadi, and Enikő Forró. "A Sustainable Green Enzymatic Method for Amide Bond Formation." Molecules 28, no. 15 (2023): 5706. http://dx.doi.org/10.3390/molecules28155706.

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A sustainable enzymatic strategy for the preparation of amides by using Candida antarctica lipase B as the biocatalyst and cyclopentyl methyl ether as a green and safe solvent was devised. The method is simple and efficient and it produces amides with excellent conversions and yields without the need for intensive purification steps. The scope of the reaction was extended to the preparation of 28 diverse amides using four different free carboxylic acids and seven primary and secondary amines, including cyclic amines. This enzymatic methodology has the potential to become a green and industrial

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5

Khalimon, Andrey, Kristina Gudun, and Davit Hayrapetyan. "Base Metal Catalysts for Deoxygenative Reduction of Amides to Amines." Catalysts 9, no. 6 (2019): 490. http://dx.doi.org/10.3390/catal9060490.

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The development of efficient methodologies for production of amines attracts significant attention from synthetic chemists, because amines serve as essential building blocks in the synthesis of many pharmaceuticals, natural products, and agrochemicals. In this regard, deoxygenative reduction of amides to amines by means of transition-metal-catalyzed hydrogenation, hydrosilylation, and hydroboration reactions represents an attractive alternative to conventional wasteful techniques based on stoichiometric reductions of the corresponding amides and imines, and reductive amination of aldehydes wit

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6

Ding, Wen, Shaoyu Mai, and Qiuling Song. "Molecular-oxygen-promoted Cu-catalyzed oxidative direct amidation of nonactivated carboxylic acids with azoles." Beilstein Journal of Organic Chemistry 11 (November 11, 2015): 2158–65. http://dx.doi.org/10.3762/bjoc.11.233.

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A copper-catalyzed oxidative direct formation of amides from nonactivated carboxylic acids and azoles with dioxygen as an activating reagent is reported. The azole amides were produced in good to excellent yields with a broad substrate scope. The mechanistic studies reveal that oxygen plays an essential role in the success of the amidation reactions with copper peroxycarboxylate as the key intermediate. Transamidation occurs smoothly between azole amide and a variety of amines.

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7

Meerakrishna, Ramakrishnan Suseela, and Ponnusamy Shanmugam. "Synthesis of blue-red emissive amido-substituted di(het)aryl and tri(het)aryl amine derivatives via chemoselective N-mono and N,N-diarylation of (het) aryl amino amides using benzyne/arynes." New Journal of Chemistry 43, no. 6 (2019): 2550–58. http://dx.doi.org/10.1039/c8nj05823g.

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Chemoselective synthesis of amide-substituted triaryl and diaryl amines by N-mono and N,N-diarylation of (het)aryl amino amides using arynes has been reported. Selected triarylamines showed blue-red emission.

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8

Krieck, Sven, Philipp Schüler, Jan Peschel, and Matthias Westerhausen. "Straightforward One-Pot Syntheses of Silylamides of Magnesium and Calcium via an In Situ Grignard Metalation Method." Synthesis 51, no. 05 (2018): 1115–22. http://dx.doi.org/10.1055/s-0037-1610407.

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Calcium bis[bis(trimethylsilyl)amide] (Ca(HMDS)2) is a widely used reagent in diverse stoichiometric and catalytic applications. These processes necessitate a straightforward and large-scale access of this complex. Calcium does not react with primary and secondary amines, but the addition of excess bromoethane to a mixture of calcium turnings and amines in THF at room temperature yields the corresponding calcium bis(amides), calcium bromide and ethane. This in situ Grignard metalation method (iGMM) allows the preparation of calcium bis(amides) from secondary and primary trialkylsilyl-substitut

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9

Mohd Shah, Nursyahmira Farhana, Nur Zulaikha Adriana Shahrulnizam, Asiah Nusaibah Masri, Nik Nor Aznizam Nik Norizam, and Izni Mariah Ibrahim. "Effect of Temperatures on Green Synthesis of Amide-based Corrosion Inhibitors from Sustainable Source." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 125, no. 2 (2024): 120–28. https://doi.org/10.37934/arfmts.125.2.120128.

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This research addresses the critical need for effective anticorrosion solutions, focusing on the development of environmentally friendly coatings using Palm Fatty Acid Distillate (PFAD), a byproduct of crude palm oil production, as a key component in amide inhibitors. Traditional inorganic corrosion inhibitors pose environmental and economic concern due to their expense and toxicity while PFAD based amides promote a sustainable and cost-effective alternative. The synthesis of PFAD based amides using ethylenediamine in ethanol at reflux at various temperatures (25, 40, 60 and 90˚C) revealed tha

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10

Yao, Lei, Ming-Yi Wang, Xin-Ke Wang, et al. "Detection of atmospheric gaseous amines and amides by a high-resolution time-of-flight chemical ionization mass spectrometer with protonated ethanol reagent ions." Atmospheric Chemistry and Physics 16, no. 22 (2016): 14527–43. http://dx.doi.org/10.5194/acp-16-14527-2016.

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Abstract. Amines and amides are important atmospheric organic-nitrogen compounds but high time resolution, highly sensitive, and simultaneous ambient measurements of these species are rather sparse. Here, we present the development of a high-resolution time-of-flight chemical ionization mass spectrometer (HR-ToF-CIMS) method, utilizing protonated ethanol as reagent ions to simultaneously detect atmospheric gaseous amines (C1 to C6) and amides (C1 to C6). This method possesses sensitivities of 5.6–19.4 Hz pptv−1 for amines and 3.8–38.0 Hz pptv−1 for amides under total reagent ion signals of ∼ 0

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11

Selvakumar, Kumaravel, Kesamreddy Rangareddy, and John F. Harrod. "The titanocene-catalyzed reduction of acetamides to tertiary amines by PhMeSiH2." Canadian Journal of Chemistry 82, no. 8 (2004): 1244–48. http://dx.doi.org/10.1139/v04-063.

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A variety of acetamide derivatives are reduced in excellent yields to tertiary amines by PhMeSiH2 in the presence of Cp2TiX2 (X = F or Me) catalysts. The reactions are very clean at 80 °C. At room temperature a secondary reaction, hydrogenolysis of the C(O)N bond, intervenes and reduces the chemoselectivity. Nevertheless, this chemistry provides a simple methodology for the amide/alkylamine transformation using inexpensive, commercially available reagents.Key words: amides, reduction, secondary amides, methylphenylsilane, titanocene, catalysis.

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12

Khaldoun, Khadidja, Abdelmounaim Safer, Salima Saidi-Besbes, Bertrand Carboni, Rémy Le Guével, and François Carreaux. "An Efficient Solvent-Free Microwave-Assisted Synthesis of Cinnamamides by Amidation Reaction Using Phenylboronic Acid/Lewis Base Co-catalytic System." Synthesis 51, no. 20 (2019): 3891–900. http://dx.doi.org/10.1055/s-0039-1690132.

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A microwave-assisted dehydrative amide condensation reaction is reported as an efficient access to cinnamamide derivatives under solvent-free conditions. This protocol between conjugated carboxylic acids and amines is based on the use of a co-catalytic system, including the presence of the commercially available phenylboronic acid and 4-(N,N-dimethylamino)pyridine N-oxide (DMAPO), with a complete chemoselectivity in favor of the corresponding α,β-unsaturated amides. The implementation of the reaction needs no special precaution, and less reactive amines, such as substituted anilines, are also

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13

Šilhánková, Alexandra, Karel Šindelář, Karel Dobrovský, Ivan Krejčí, Jarmila Hodková, and Zdeněk Polívka. "Synthesis of New L-Proline Amides with Anticonvulsive Effect." Collection of Czechoslovak Chemical Communications 61, no. 7 (1996): 1085–92. http://dx.doi.org/10.1135/cccc19961085.

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Series of heterocyclic L-proline amides were prepared from BOC-L-proline and heterocyclic amines (mostly substituted piperazines and morpholines) via active ester with hydroxysuccinimide. 4-(4-Fluorobenzoyl)piperidine afforded L-proline 4-(4-(4-(4-fluorobenzoyl)piperidin-1-yl)benzoyl)piperidine (7b) simultaneously with expected L-proline 4-(4-fluorobenzoyl)piperidide (7a). D-Proline N-(3-(4-(3-chlorophenyl)piperazin-1-yl)propyl)amide (2) was prepared starting from D-proline. The amides were tested by methods of biochemical and behavioural pharmacology.

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14

Haake, Paul, and Donald A. Tyssee. "Estimation of Charge Density on Nitrogen in Amides by Measurement of One-Bond Carbon-Hydrogen Nuclear Coupling Constants in N-CH3 Group." Zeitschrift für Naturforschung A 48, no. 1-2 (1993): 58–62. http://dx.doi.org/10.1515/zna-1993-1-216.

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Abstract One-bond, 13C-1H coupling constants, J1(C-H), 'in amines, ammonium ions, and carboxylic amides correlate with structure and support the concept that the value of J1(C-H) is related to the charge density on the nitrogen atom; for example, amine oxides have nearly the same charge density at nitrogen as does the tetramethylammonium ion. The J1(C-H) values for methyls bonded to nitrogen in various amides then give an experimental estimate of the charge density at the nitrogen atom that enables an estimate of the bond order in the C-N amide-bond; the data suggest that carboxylic amides hav

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15

Qu, Jing, Shishan Yu, Wenzhao Tang, Yunbao Liu, Yue Liu, and Jing Liu. "Progress on Cassaine-Type Diterpenoid Ester Amines and Amides (Erythrophleum Alkaloids)." Natural Product Communications 1, no. 10 (2006): 1934578X0600101. http://dx.doi.org/10.1177/1934578x0600101005.

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The structures, spectral characteristics, and bioactivities of 39 natural cassaine-type diterpenoid ester amines and amides (Erythrophleum alkaloids) and 31 synthetic analogues are reviewed. Cassaine-type diterpenoid ester amines and amides, the so called Erythrophleum alkaloids, have the skeleton of cassane-type diterpenoids with a N-containing side chain, and are classified into two groups, ester amines and amides. Cassaine-type diterpenoid ester amines and amides show remarkable inotropic action on the heart, inhibition of Na+/K+-ATPase, cytotoxities, and other major bioactivities. Structur

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16

Pardeep, Kaur, Sharma Sunita, Gaba Jyoti, and Rashmi. "Conventional vs microwave assisted synthesis of different substituted heterocyclic amides." Journal of Indian Chemical Society Vol. 96, Mar 2019 (2019): 401–5. https://doi.org/10.5281/zenodo.5651034.

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Department of Chemistry, Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana-141 004, Punjab, India <em>E-mail: </em>pardip2493@gmail.com, sunita_sharma@pau.edu, jyotgcw@gmail.com, rashmibakshi280@gmail.com <em>Manuscript received online 05 September 2018, revised 20 February 2019, accepted 26 February 2019</em> Amides have great importance in the field of synthetic organic chemistry because of their presence in many biologically active molecules. Condensation of different carboxylic acids with different amines is one of the most convenient method for amide synt

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17

Zahardis, J., S. Geddes, and G. A. Petrucci. "The ozonolysis of primary aliphatic amines in single and multicomponent fine particles." Atmospheric Chemistry and Physics Discussions 7, no. 5 (2007): 14603–38. http://dx.doi.org/10.5194/acpd-7-14603-2007.

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Abstract. The oxidative processing by ozone of the particulate amines octadecylamine (ODA) and hexadecylamine (HDA) is reported. Ozonolysis of these amines resulted in strong NO2− and NO3− ion signals that increased with ozone exposure as monitored by photoelectron resonance capture ionization aerosol mass spectrometry. These products suggest a mechanism of progressive oxidation of the particulate amines to nitro alkanes. Additionally, a strong ion signal at 125 m/z is assigned to the ion NO3−(HNO3). For ozonized mixed particles containing ODA or HDA + oleic acid (OL), with pO3≥3×10−7 atm, imi

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18

Zahardis, J., S. Geddes, and G. A. Petrucci. "The ozonolysis of primary aliphatic amines in fine particles." Atmospheric Chemistry and Physics 8, no. 5 (2008): 1181–94. http://dx.doi.org/10.5194/acp-8-1181-2008.

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Abstract. The oxidative processing by ozone of the particulate amines octadecylamine (ODA) and hexadecylamine (HDA) is reported. Ozonolysis of these amines resulted in strong NO2– and NO3– ion signals that increased with ozone exposure as monitored by photoelectron resonance capture ionization aerosol mass spectrometry. These products suggest a mechanism of progressive oxidation of the particulate amines to nitroalkanes. Additionally, a strong ion signal at 125 m/z is assigned to the ion NO3– (HNO3). For ozonized mixed particles containing ODA or HDA + oleic acid (OL), with pO3≥3×10–7 atm, imi

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19

Waseem Abbasi, Sana, Naveed Zafar Ali, Martin Etter, et al. "Synthesis, Characterization and Biological Studies of Ether–Based Ferrocenyl Amides and their Organic Analogues." Crystals 10, no. 6 (2020): 480. http://dx.doi.org/10.3390/cryst10060480.

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Ferrocenyl amides (FB1-FB13) and their organic analogues (BZ1-BZ13) were prepared by a low-temperature condensation method. Ferrocenyl amides were synthesised using 4-ferrocenylbenzoyl chloride and ether-based amines and diamines. Benzoyl chloride was used to synthesise organic analogues by reacting with various amines. The synthesised compounds were characterised by elemental, spectroscopic (FT-IR and NMR) and single crystal X-ray diffraction methods. Crystal structures of the representative organic analogues (BZ2 and BZ6) were solved by single crystal X-ray diffraction. BZ2 crystallises in t

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20

Berti, Federico, Elena Maria Tamburello, and Cristina Forzato. "p-Coumaroyl Amides from the Plant Kingdom: A Comprehensive Review of Natural Sources, Biosynthesis, and Biological Activities." Molecules 30, no. 6 (2025): 1259. https://doi.org/10.3390/molecules30061259.

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Hydroxycinnamic acids are widely distributed in the plant kingdom, both as free compounds and as conjugates with other molecules, such as amino acids, carbohydrates, alcohols or amines, and polyamines, forming different derivatives, such as amides, esters, thioesters, or ethers. Among the different hydroxycinnamic acids, p-coumaric acid has a high bioavailability and its amide derivatives, also known as phenolamides (PAs) and hydroxycinnamic acid amides (HCAAs), play specific roles in plant development and defense. They are also involved in several biological activities that affect human healt

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21

Xu, Qing, Huamei Xie, Er-Lei Zhang, et al. "Selective catalytic Hofmann N-alkylation of poor nucleophilic amines and amides with catalytic amounts of alkyl halides." Green Chemistry 18, no. 14 (2016): 3940–44. http://dx.doi.org/10.1039/c6gc00938g.

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A selective Hofmann N-alkylation reaction of amines/amides catalytic in alkyl halides is achieved by using alcohols as the alkylating reagents, affording mono- or di-alkylated amines/amides in high selectivities.

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22

Dunn, P., E. A. Parkes, and J. B. Polya. "Amides IX: Acylation of amides and amines." Recueil des Travaux Chimiques des Pays-Bas 71, no. 7 (2010): 676–83. http://dx.doi.org/10.1002/recl.19520710708.

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23

North, Michael. "Amines and amides." Journal of the Chemical Society, Perkin Transactions 1, no. 16 (1999): 2209–29. http://dx.doi.org/10.1039/a903369f.

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24

North, Michael. "Amines and amides." Contemporary Organic Synthesis 1, no. 6 (1994): 475. http://dx.doi.org/10.1039/co9940100475.

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25

North, Michael. "Amines and amides." Contemporary Organic Synthesis 2, no. 4 (1995): 269. http://dx.doi.org/10.1039/co9950200269.

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North, Michael. "Amines and amides." Contemporary Organic Synthesis 3, no. 4 (1996): 323. http://dx.doi.org/10.1039/co9960300323.

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27

North, Michael. "Amines and amides." Contemporary Organic Synthesis 4, no. 4 (1997): 326. http://dx.doi.org/10.1039/co9970400326.

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28

North, Michael. "Amines and amides." Journal of the Chemical Society, Perkin Transactions 1, no. 17 (1998): 2959–72. http://dx.doi.org/10.1039/a802125b.

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Kumagai, Naoya, and Masakatsu Shibasaki. "7-Azaindoline Auxiliary: A Versatile Attachment Facilitating Enantioselective C–C Bond-Forming Catalysis." Synthesis 51, no. 01 (2018): 185–93. http://dx.doi.org/10.1055/s-0037-1610412.

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This short review provides an overview of 7-azaindoline auxiliaries in asymmetric catalysis. 7-Azaindoline serves as a useful attachment to carboxylic acids, and the thus-formed 7-azaindoline amides are amenable to atom-economical C–C bond-forming reactions with high stereoselectivity. The attachment is used for the sake of gaining traction in promoting the reaction of interest and can be easily removed after enantioselective reactions. Both nucleophilic and electrophilic catalyses are realized with broad tolerance for functional groups, showcasing the usefulness of 7-azaindoline auxiliaries f

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30

Cheng, Hua, Cheng Chen, Rui Zhang, et al. "A Practical Approach for the Transamidation of N,N-Dimethyl Amides with Primary Amines Promoted by Sodium tert-Butoxide under Solvent-Free Conditions." Synthesis 52, no. 21 (2020): 3286–94. http://dx.doi.org/10.1055/s-0040-1705892.

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AbstractA practical sodium tert-butoxide (NaOtBu)-mediated protocol is disclosed for the transamidation of various N,N-dimethyl amides with primary amines to afford the corresponding amides in moderate to good yields at room temperature under solvent-free conditions. This protocol features a facile work-up procedure and good functional group compatibility, especially for N,N-dimethyl amides with long-chain alkyl groups and heteroatom-containing amines. Notably, a few representative gram-scale reactions proceed smoothly to furnish the desired amides in high yields, which demonstrates the potent

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31

Ocampo Gutiérrez de Velasco, Diego, Aoze Su, Luhan Zhai, Satowa Kinoshita, Yuko Otani, and Tomohiko Ohwada. "Unexpected Resistance to Base-Catalyzed Hydrolysis of Nitrogen Pyramidal Amides Based on the 7-Azabicyclic[2.2.1]heptane Scaffold." Molecules 23, no. 9 (2018): 2363. http://dx.doi.org/10.3390/molecules23092363.

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Non-planar amides are usually transitional structures, that are involved in amide bond rotation and inversion of the nitrogen atom, but some ground-minimum non-planar amides have been reported. Non-planar amides are generally sensitive to water or other nucleophiles, so that the amide bond is readily cleaved. In this article, we examine the reactivity profile of the base-catalyzed hydrolysis of 7-azabicyclo[2.2.1]heptane amides, which show pyramidalization of the amide nitrogen atom, and we compare the kinetics of the base-catalyzed hydrolysis of the benzamides of 7-azabicyclo[2.2.1]heptane an

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32

Yang, Guo-Ping, Ke Li, Wei Liu, Kai Zeng, and Yu-Feng Liu. "Copper-catalyzed aerobic oxidative C–C bond cleavage of simple ketones for the synthesis of amides." Organic & Biomolecular Chemistry 18, no. 35 (2020): 6958–64. http://dx.doi.org/10.1039/d0ob01601b.

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Box, Vernon G. S. "Biocidal Amidic Natural Products." Natural Product Communications 3, no. 11 (2008): 1934578X0800301. http://dx.doi.org/10.1177/1934578x0800301111.

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Some of the more potent, and interesting, natural products that have marked biocidal properties have one, or more, amide functional groups. On the other hand, there are countless amides that are non-toxic. Thus, there is a need to try to identify the structural features of biocidal amides that could indicate their potential toxicity. A review of the structures of some of these toxic amides, using the molecular modeling program STR3DI32, has established that these amide groups are non-delocalized.

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Xia, Ji-Bao, Yan-Lin Li, and Zheng-Yang Gu. "Transition-Metal-Catalyzed Intermolecular C–H Carbonylation toward Amides." Synlett 32, no. 01 (2020): 07–13. http://dx.doi.org/10.1055/s-0040-1706416.

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The amide linkage is one of the most important structural moieties in both chemistry and biology. Here, we briefly discuss recent advances in catalytic intermolecular C–H carbonylation reactions for the synthesis of amides, with particular attention to our intermolecular C–H amidation of arenes with carbon monoxide and organic azides to produce amides.1 Introduction2 Representative Methods for Amide Synthesis3 C–H Aminocarbonylation with Carbon Monoxide and Amines4 C–H Amidation to Amides with Carbon Monoxide and Azides5 Summary and Outlook

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35

Das, Hari S., Shyamal Das, Kartick Dey, et al. "Primary amides to amines or nitriles: a dual role by a single catalyst." Chemical Communications 55, no. 79 (2019): 11868–71. http://dx.doi.org/10.1039/c9cc05856g.

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36

Bittner, Nataly, Andy Boon, Evert H. Delbanco, Christof Walter, and Angela Mally. "Assessment of aromatic amides in printed food contact materials: analysis of potential cleavage to primary aromatic amines during simulated passage through the gastrointestinal tract." Archives of Toxicology 96, no. 5 (2022): 1423–35. http://dx.doi.org/10.1007/s00204-022-03254-w.

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AbstractRecent analyses conducted by German official food control reported detection of the aromatic amides N-(2,4-dimethylphenyl)acetamide (NDPA), N-acetoacetyl-m-xylidine (NAAX) and 3-hydroxy-2-naphthanilide (Naphthol AS) in cold water extracts from certain food contact materials made from paper or cardboard, including paper straws, paper napkins, and cupcake liners. Because aromatic amides may be cleaved to potentially genotoxic primary amines upon oral intake, these findings raise concern that transfer of NDPA, NAAX and Naphthol AS from food contact materials into food may present a risk t

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37

Blondiaux, Enguerrand, and Thibault Cantat. "Efficient metal-free hydrosilylation of tertiary, secondary and primary amides to amines." Chem. Commun. 50, no. 66 (2014): 9349–52. http://dx.doi.org/10.1039/c4cc02894e.

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Hydrosilylation of secondary and tertiary amides to amines is described using catalytic amounts of B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>. The organic catalyst enables the reduction of amides with cost-efficient, non-toxic and air stable PMHS and TMDS hydrosilanes. The methodology was successfully extended to the more challenging reduction of primary amides.

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Hao, Hong-Yan, Shao-Jie Lou, Shuang Wang та ін. "Pd-catalysed β-selective C(sp3)–H arylation of simple amides". Chemical Communications 57, № 65 (2021): 8055–58. http://dx.doi.org/10.1039/d1cc02261j.

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Laclef, Sylvain, Maria Kolympadi Marković, and Dean Marković. "Amide Synthesis by Transamidation of Primary Carboxamides." Synthesis 52, no. 21 (2020): 3231–42. http://dx.doi.org/10.1055/s-0040-1707133.

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The amide functionality is one of the most important and widely used groups in nature and in medicinal and industrial chemistry. Because of its importance and as the actual synthetic methods suffer from major drawbacks, such as the use of a stoichiometric amount of an activating agent, epimerization and low atom economy, the development of new and efficient amide bond forming reactions is needed. A number of greener and more effective strategies have been studied and developed. The transamidation of primary amides is particularly attractive in terms of atom economy and as ammonia is the single

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Weaver-Guevara, Holly M., Ryan W. Fitzgerald, and Arthur Greenberg. "Rotational barriers in five related amides." Canadian Journal of Chemistry 95, no. 3 (2017): 271–77. http://dx.doi.org/10.1139/cjc-2016-0344.

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Interest in the low carbonyl IR frequency of 2-hydroxy-N,N-bis(2-hydroxyethyl)acetamide (2) initially prompted our interest in the amide rotational barrier of this molecule and four related amides that present a variety of hydrogen-bonding possibilities. In the course of this study, a previously incorrect structural assignment was established as N,N-bis[2-(acetyloxy)ethyl]-acetamide (6). In acetonitrile-d3, the carbonyl IR frequencies of the five amides were all essentially normal amide frequencies. Despite very different hydrogen-bonding possibilities in the five amides, no clear trends emerg

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Radenović, Čedomir, Danica Bajuk-Bogdanović, Milica Radosavljević, et al. "Assaying of structural parts of hybrid ZP677 grain by IC method disordered Total reflection." Selekcija i semenarstvo 28, no. 1 (2022): 9–22. http://dx.doi.org/10.5937/selsem2201009r.

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In this paper, the grain and structural parts of the grain of maize hybrid ZP 677 were studied, using Infrared Spectroscopy - Attenuated Total Reflectance (ATR). The ATR spectra of grain, endosperm, pericarp and germ of maize hybrid are characterized by a number of bands, band intensity, band kinetics and band location distribution in the wavelength range 400 cm-1 to 4000 cm-1. These parameters were specifically tested for both, the grain and the endosperm, pericarp and germ. Spectral bands that are very high and high intensity usually range from 3 to 5, characterized by different intensity, k

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Garg, Jai Anand, Subrata Chakraborty, Yehoshoa Ben-David, and David Milstein. "Unprecedented iron-catalyzed selective hydrogenation of activated amides to amines and alcohols." Chemical Communications 52, no. 30 (2016): 5285–88. http://dx.doi.org/10.1039/c6cc01505k.

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The first example of hydrogenation of activated amides to amines and alcohols catalyzed by an earth-abundant iron metal complex is discovered. A wide range of trifluoromethyl-substituted secondary and tertiary aromatic and aliphatic amides were hydrogenated.

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Saha, Sayantani, and Moris S. Eisen. "Mild catalytic deoxygenation of amides promoted by thorium metallocene." Dalton Transactions 49, no. 36 (2020): 12835–41. http://dx.doi.org/10.1039/d0dt02770g.

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The organoactinide-catalyzed (Cp*<sub>2</sub>ThMe<sub>2</sub>) hydroborated reduction of a wide range of tertiary, secondary, and primary amides to the corresponding amines/amine–borane adducts via deoxygenation of the amides is reported herein.

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Tomasini, Michele, Lucia Caporaso, Michal Szostak, and Albert Poater. "Towards the activity of twisted acyclic amides." RSC Advances 15, no. 11 (2025): 8207–12. https://doi.org/10.1039/d5ra00229j.

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Schuhmacher, Anne, Tomoya Shiro, Sarah J. Ryan, and Jeffrey W. Bode. "Synthesis of secondary and tertiary amides without coupling agents from amines and potassium acyltrifluoroborates (KATs)." Chemical Science 11, no. 29 (2020): 7609–14. http://dx.doi.org/10.1039/d0sc01330g.

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Oxidative amidation of potassium acyltrifluoroborates (KATs) and amines via trifluoroborate iminiums (TIMs) delivers amides without coupling agents. This unusual approach to amides can be applied for the late-stage modification of bioactive molecules and for solid-phase peptide synthesis.

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Glover, Stephen A., Arvi Rauk, Jeanne M. Buccigross, et al. "The HERON reaction Origin, theoretical background, and prevalence." Canadian Journal of Chemistry 83, no. 9 (2005): 1492–509. http://dx.doi.org/10.1139/v05-150.

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The origin of the HERON reaction is reviewed from a historical perspective and shown to have its foundation in the unusual properties of bisheteroatom-substituted amides, so-called anomeric amides. The reaction involves migration of anomerically destabilized oxo-substituents on an amide nitrogen to the amide carbon and dissociation of the amide bond. Computational work providing a theoretical basis for the reaction is presented, together with physical organic measurements that support results therefrom. The rearrangement has been observed in a number of chemical transformations of N-alkoxy-N-a

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Dadashova, N. K., V. M. Abbasov, E. A. Mamadov, D. B. Agamalieva та A. H. Talybov. "Study of bactericidal properties аmides based on natural petroleum acid and amines". Practice of Anticorrosive Protection 28, № 3 (2023): 18–26. https://doi.org/10.31615/j.corros.prot.2023.109.3-2.

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At present, the protection of oil industry equipment from corrosion from a scientific, technical and economic point of view remains one of the most important tasks. Given the relevance of the topic, a bactericide was synthesized to protect oilfield equipment and pipelines from general and microbiological corrosion - an inhibitor of complex action. This paper presents an analysis of the results of scientific research in the field of synthesis, study of properties and search for areas of application of the synthesized amides based on amines (aniline, benzylamine) and natural petroleum acid (NPA)

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Bock, Hans, and Erik Heigel. "Wechselwirkungen in Molekülkristallen, 162 [1, 2]. Di(arylsulfonyl)amine – geeignete Liganden für lipophil umhüllte Polyionen-Aggregate mit Cs⊕ -Schichten variabler Dicke / Interaction in Molecular Crystals, 162 [1, 2]. Di(arylsulfonyl)amines – Ligands for Lipophilically Wrapped Polyion Aggregates with Cs⊕ -Layers of Variable Thickness." Zeitschrift für Naturforschung B 55, no. 11 (2000): 1053–66. http://dx.doi.org/10.1515/znb-2000-1111.

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Di(arylsulfonyl)amides are presented as novel anionic ligands for polycation aggregates. Starting from the structures of Ag⊕ and Na⊕ salts registered in the Cambridge Structural Database, the largest alkali cation Cs⊕ with high coordination number has been selected and in extreme low gradient crystallisation single crystals of both cesium-di(benzenesulfonyl)amide and cesium-di(4-toluenesulfonyl)amide were grown. Their structure determinations revealed that both polymeric salts contain cation layers (Cs⊕)∝: The one lipophilically wrapped by di(benzenesulfonyl)amide ligands exhibits hexagonal (C

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Fournand, David, Frederic Bigey, and Alain Arnaud. "Acyl Transfer Activity of an Amidase from Rhodococcussp. Strain R312: Formation of a Wide Range of Hydroxamic Acids." Applied and Environmental Microbiology 64, no. 8 (1998): 2844–52. http://dx.doi.org/10.1128/aem.64.8.2844-2852.1998.

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ABSTRACT The enantioselective amidase from Rhodococcus sp. strain R312 was produced in Escherichia coli and was purified in one chromatographic step. This enzyme was shown to catalyze the acyl transfer reaction to hydroxylamine from a wide range of amides. The optimum working pH values were 7 with neutral amides and 8 with α-aminoamides. The reaction occurred according to a Ping Pong Bi Bi mechanism. The kinetic constants demonstrated that the presence of a hydrophobic moiety in the carbon side chain considerably decreased the K m amide values (e.g.,K m amide = 0.1 mM for butyramide, isobutyra

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Drabik, Jolanta, Kamil Korasiak, Justyna Chrobak, et al. "Amide-Based Anti-Wear/Extreme-Pressure Additives for Silica-Thickened Greases: Structure and Wear Resistance." Molecules 30, no. 12 (2025): 2492. https://doi.org/10.3390/molecules30122492.

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The lubricating properties of three secondary amides were evaluated using the four-ball apparatus method. It was found that the studied amides—N-propylpropanamide (AC3C3), N-propyloctanamide (AC3C8), and N-propyldodecanamide (AC3C12)—could be a promising group of new AW/EP (anti-wear/extreme-pressure) additives for lubricants, especially for silica-thickened greases. Of the amides tested, AC3C8 was found to have the best properties. The synthesized amide structures were immobilized on SBA-15 nanosilica and examined as described above. Notably, SBA-15 has not previously been reported as a poten

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