Relevant bibliographies by topics / Aldehydic moiety

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Academic literature on the topic 'Aldehydic moiety'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Aldehydic moiety"

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Salus, Kinga, Marcin Hoffmann, Tomasz Siodła, Bożena Wyrzykiewicz, and Donata Pluskota-Karwatka. "Synthesis, structural studies and stability of model cysteine containing DNA–protein cross-links." New Journal of Chemistry 41, no. 6 (2017): 2409–24. http://dx.doi.org/10.1039/c7nj00270j.

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In the presence of N<sup>α</sup>-acetyllysine, cross-links of aldehydic adenine nucleoside adducts with N-acetylcysteine lose an N-acetylcysteine moiety undergoing transformation into amino derivatives.
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2

M., T. EL-HATY, A. ADAM F., E. MOHAMED A., and A. GABR A. "Electronic Spectra of some Heterocyclic Schiff Bases derived from 3-Amino-1 ,2,4-triazole." Journal of Indian Chemical Society Vol. 67, Sep 1990 (1990): 743–47. https://doi.org/10.5281/zenodo.6244210.

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Chemistry Department, Faculty of Science, A swan, Egypt <em>Manuscript received 21 November 1989, revised 14 March 1990, accepted 3 July 1990</em> Electronic spectra of some heterocyclic Schiff bases derived from 3-amino1,2,4-triazole in pure and mixed organic solvents of various polarities have been studied. Band assignments and spectra-structure correlations have been made. The possibility of the hydroxy derivatives to form hydrogen bonded molecular complexes with ethanol has been examined The p<em>K</em>a values of triazole ring and the different substituents attached to the aldehydic moiet
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Roy, Chandra D., and Herbert C. Brown. "Monobromoborane - Dimethyl Sulfide—a Highly Promising Reagent for the Regio- and Chemoselective Brominative Cleavage of Terminal Epoxides into Vicinal Bromohydrins." Australian Journal of Chemistry 60, no. 2 (2007): 139. http://dx.doi.org/10.1071/ch06408.

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Monobromoborane–dimethyl sulfide (BH2Br–SMe2) is a highly regio- and chemoselective reagent useful for the brominative cleavage of the epoxy moiety into bromohydrins in the presence of alkenes, alkynes, ethers, acetals, ketals, and acetonides at 0°C, besides being an excellent hydroborating reagent. Several reactive functional groups, such as chloride, ketones, esters, nitriles, nitros, and thioethers, have been accommodated during such transformations. Although the reduction of acetophenone was completely suppressed at –25°C, 4-chlorobenzaldehyde still underwent 12–13% reduction of an aldehyd
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Awad, Mohamed K., Mahmoud F. Abdel-Aal, Faten M. Atlam та Hend A. Hekal. "Synthesis of New α-Amino Phosphonates Containing 3-Amino-4(3H) Quinazolinone Moiety as Anticancer and Antimicrobial Agents: DFT, NBO, and Vibrational Studies". Current Organic Synthesis 15, № 2 (2018): 286–96. http://dx.doi.org/10.2174/1570179414666170703141629.

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Aim and Objective: Synthesis of new .-aminophosphonates containing quinazoline moiety through Kabachnik-Fields reaction in the presence of copper triflate catalyst [32], followed by studying their antimicrobial activities and in vitro anticancer activities against liver carcinoma cell line (HepG2) with the hope that new anticancer agents could be developed. Also, the quantum chemical calculations are performed using density functional theory (DFT) to study the effect of the changes of molecular and electronic structures on the biological activity of the investigated compounds. Materials and Me
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Bercich, Mark D., Richard C. Cambie, and Peter S. Rutledge. "Experiments Directed Towards the Synthesis of Anthracyclinones. XXXII. Synthesis of Anthraquinone Aldehydes." Australian Journal of Chemistry 52, no. 4 (1999): 241. http://dx.doi.org/10.1071/c98102.

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Syntheses of C2 anthraquinone aldehydes from the commercially availableanthraru¯n (1) have been investigated. A synthesis of the keto aldehyde(2) in nine steps and 73% overall yield was achieved. Syntheses of (2)exploiting selective oxidations of either a C-boundallyl group by Wacker oxidation to introduce the methyl keto functionality orof a C-bound prop-1-enyl moiety by dihydroxylation andoxidative cleavage to generate the C2 formyl group were also developed. Thealdehyde (27) was synthesized in seven steps and in 81% overall yieldfrom (1), and syntheses of the phenolic aldehydes (33), (34),
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Tietze, Lutz F., Christian Ott, and Frank Haunert. "Efficient and regioselective synthesis of bridged ring systems by domino Knoevenagel – hetero-Diels–Alder reaction." Canadian Journal of Chemistry 79, no. 11 (2001): 1511–14. http://dx.doi.org/10.1139/v00-204.

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The bridged heterocycles 10–12 were efficiently prepared by a domino Knoevenagel – hetero-Diels–Alder reaction of N,N'-dimethylbarbituric acid 2 and the aldehydes 6–8 which contain an allyl moiety as dienophile. In contrast, reaction of 2 and aldehyde 5 with a dimethylallyl moiety leads to the annulated product 9. For the formation of 10–12, an exo-Z-syn and for that of 9 an endo-E-syn transition structure is proposed.Key words: bridged compounds, domino reaction, Diels–Alder reaction, heterocycles, Knoevenagel reaction.
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Zhang, Yue Cheng, Jing Yuan Gao, Nai Yue Shi, and Ji Quan Zhao. "Synthesis of Chiral Tridentate Ligands Embodying the Bispidine Framework and their Application in the Enantioselective Addition of Diethylzinc to Aldehydes." Advanced Materials Research 396-398 (November 2011): 1236–43. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.1236.

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Several new chiral tridentate ligands with the bispidine moiety were synthesized from N-alkyl bispidines and chiral amino (or hydroxyl) acids. The synthesized ligands were used as catalysts in the enantioselective addition of diethylzinc to several aromatic aldehydes and an aliphatic aldehyde. High yield and enantioselectivity were received in the cases of aromatic aldehydes as substrates especially when the employed chiral ligand has a hydroxyl group attached to the chiral center. The effect of the structure, the amount of tridentate chiral ligands, solvent and temperature on the enantioselec
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Colombo, Sara, Julie Oble, Giovanni Poli, et al. "Doubly Metathetic NiCl2-Catalyzed Coupling Between Bis(2-oxazolines) and Aldehydes: A Novel Access to Bis(ester-imine) Derivatives." Molecules 29, no. 23 (2024): 5756. https://doi.org/10.3390/molecules29235756.

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The coupling between bis(2-oxazolines) and two equivalents of aromatic aldehydes in the presence of catalytic amounts of NiCl2 affords an ester-imine product in synthetically useful yields. This virtually unknown, 100% atom-economic transformation involves the formal metathesis between the C=N double bond of the bis(2-oxazoline) moiety, which undergoes ring-opening, and the C=O double bond of the aldehyde. The scope of this transformation is studied, and a mechanism is proposed based on DFT calculations.
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Montenegro, Javier, José Reina, and Alicia Rioboo. "Glycosyl Aldehydes: New Scaffolds for the Synthesis of Neoglycoconjugates via Bioorthogonal Oxime Bond Formation." Synthesis 50, no. 04 (2018): 831–45. http://dx.doi.org/10.1055/s-0036-1591082.

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The straightforward preparation of glycosyl neoconjugates by oxime (or hydrazone) bond formation represents a key bioorthogonal tool in chemical biology. However, when this strategy is employed by reacting the reducing end of the glycan moiety, the configuration and the stereochemical information is lost due to partial (or complete) opening of the glycan cyclic hemiacetal and the formation of the corresponding opened tautomers. We have completed the synthesis of a library of glycosyl aldehydes to be used as scaffold for the synthesis of neoglycoconjugates via oxime bond formation. These glycos
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Petrikaitė, Vilma, Eduardas Tarasevičius, and Alvydas Pavilonis. "Synthesis and Antimicrobial Properties of Naphthylamine Derivatives Having a Thiazolidinone Moiety." Medicina 47, no. 6 (2011): 47. http://dx.doi.org/10.3390/medicina47060047.

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Objective. The aim of this study was to evaluate the influence of pharmacophores having naphthylamine and nitro groups on the antimicrobial (antibacterial and antifungal) activity of thiazolidinone derivatives. Materials and Methods. The initial 5-substituted-2-methylmercaptothiazolidin-4-ones were subjected to S-demethylation to yield 2-amino-substituted thiazolidinones. 4-Nitro-1-naphthylamine, nitrofuran aldehydes, and nitrobenzene aldehydes were used as pharmacophoric compounds having amino or aldehyde groups. Antimicrobial (antibacterial and antifungal) activity of the new compounds was t
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Book chapters on the topic "Aldehydic moiety"

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Uwamori, Masahiro, Ryunosuke Osada, Ryoji Sugiyama, et al. "Overcoming Difficulties in Total Synthesis of (+)-Cotylenin A." In Modern Natural Product Synthesis. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1619-7_11.

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AbstractThe total synthesis of the natural product cotelynin A, which exhibits promising anti-cancer activity, is urgently required, as its source, Cladosporium sp. 501-7W, has lost its proliferative ability. Herein, we report the first total synthesis of cotelynin A. Contiguous asymmetric carbons at the C8 and C9 positions in the B-ring of the aglycon moiety of cotylenin A are difficult to construct after the formation of the B-ring via pinacol coupling. The revised synthesis of the aglycon moiety involved the alkenylation of a methyl ketone to construct the B-ring; for this convergent synthe
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Clapés, P., and W. D. Fessner. "Transfer of a Hydroxyacetyl Moiety to Aldehydes." In Stereoselective Reactions of Carbonyl and Imino Groups. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-202-00380.

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Chiba, S., and K. Narasaka. "Reactions with Retention of the Oxime Moiety." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-127-00149.

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Schantl, J. G. "Reaction of the Hydrazide Moiety in Pyrazolidin-3-ones with Alkynes." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00699.

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Schantl, J. G. "Condensation of the Hydrazine Moiety of 1,2-Diazetidinium Tosylates with Carbonyl Compounds." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00697.

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Schantl, J. G. "Condensation of the Hydrazide Moiety of Pyrazolidin-3-ones with Carbonyl Compounds." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00698.

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Schantl, J. G. "Condensation of the Hydrazide Moiety of Six-Membered Rings with Carbonyl Compounds." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00700.

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Bailey, Patrick D., and Keith M. Morgan. "Amides." In Organonitrogen Chemistry. Oxford University Press, 2022. http://dx.doi.org/10.1093/hesc/9780198557753.003.0009.

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This chapter discusses enamines. It explains the process of achieving enamine through regaining neutrality by losing a proton adjacent to the iminium moiety. Additionally, these compounds rarely serve as nucleophiles or bases on nitrogen. The chapter discusses the formation of enamines from amine and aldehyde or ketone. It highlights how electrophiles are required to be quite reactive as enamines are moderately nucleophilic. The chapter adds the hydrolysis of enamine which is an effort to regenerate the original secondary amine and reveal the carbonyl group. Also, it explores the tautomerism o
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"Vitamin B3 Niacin and the Nicotinamide Coenzymes." In The Chemical Biology of Human Vitamins. The Royal Society of Chemistry, 2018. http://dx.doi.org/10.1039/bk9781788014649-00130.

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Niacin, also known as nicotinic acid is vitamin B3, originally identified as the curative molecule for the human disease pellagra. After ingestion humans process B3 to the quaternized pyridinium ring in NAD+/NADP+ coenzyme forms. NAD+ undergoes reversible hydride transfer from alcohols, aldehydes, and amine cosubstrates undergoing oxidation, as NAD+ is concomitantly reduced to NADH. NADH is thermodynamically activated and kinetically stable (unreactive with O2) and serves as the major diffusible cellular reducing currency (hydride transfer). NAD+ is also activated for transfer of the ADP-ribos
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Schantl, J. G. "Chlorination of 1,2,4-Triazolidine-3,5-dione Followed by Base-Induced Dehydrohalogenation of the -Chlorohydrazide Moiety." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00701.

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Conference papers on the topic "Aldehydic moiety"

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Deusova, E. S., M. А. Khancheuski, and E. I. Kvasyuk. "SYNTHESIS OF TRIHYDROXY-INOSINE." In SAKHAROV READINGS 2021: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2021. http://dx.doi.org/10.46646/sakh-2021-2-41-44.

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Nucleoside derivatives with broken sugar moiety like dialdehydes or trioles have unusual structures and are called seco-nucleosides. They have different types of biological activity which till this time have not been studied enough. It is a result of the high reactivity of aldehydes and hydroxyl groups and the unusual structure of compounds. This article presents two approaches for the synthesis of trihydroxy-inosine from inosine. It was shown that the method for oxidation of diol groups of ribonucleosides using the ion exchange resin in IO4-former has preferences to the method which used NaIO
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Verdes, Anastasia, Elena Gorincioi, Lucian Lupascu, Gheorghe Duca, and Fliur Macaev. "Targeting the bioactive dihydropyrimidines by ecofriendly procedure of biginelli reaction: study case of monastrol." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab24.

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Biologically active compounds decorated with dihydropyridine moiety are counted amongst the numerous broad-spectrum therapeutic agents that explain the increasing role of this scaffold in rational drug design [1]. The Biginelli reaction is a multicomponent reaction of aldehyde, (thio)urea, and ß-ketoester, involving Mannich reaction in the first step, which produces multifunctionalized 3,4-dihydropyrimidin-2-(1H)-ones and related heterocyclic compounds [2]. The attractiveness of this acid-catalyzed one-pot condensation reaction lies in the simplicity of grafting the substituent into the struct
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