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Relevant bibliographies by topics / Ketones and aldehydes

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Academic literature on the topic 'Ketones and aldehydes'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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Journal articles on the topic "Ketones and aldehydes"

1

Kabalka, George W., Su Yu, and Nan-Sheng Li. "Selective hydroboration of alkenes and alkynes in the presence of aldehydes and ketones." Canadian Journal of Chemistry 76, no. 6 (June 1, 1998): 800–805. http://dx.doi.org/10.1139/v98-042.

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The reactions of terminal alkenes in the presence of ketones or aldehydes with a variety of borane reagents have been investigated. It was found that the selective hydroboration of a terminal alkene in the presence of a ketone or an aldehyde is most efficient when dicyclohexylborane is used as the hydroborating agent. The hydroboration of olefinic ketones and olefinic aldehydes with dicyclohexylborane generates the corresponding hydroxyaldehydes and hydroxyketones in good yields after oxidation with sodium perborate. The hydroboration of alkynyl ketones and alkynyl aldehydes with dicyclohexylborane yields the corresponding olefinic carbonyl compounds after protonation, or dicarbonyl compounds after oxidation.Key words: hydroboration, reduction, dicyclohexylborane, hydroxyaldehyde, hydroxyketone.

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2

Mai, Juri, and Sascha Ott. "The Fascinating World of Phosphanylphosphonates: From Acetylenic Phosphaalkenes to Reductive Aldehyde Couplings." Synlett 30, no. 16 (August 13, 2019): 1867–85. http://dx.doi.org/10.1055/s-0039-1690129.

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This account highlights the versatility of phosphanylphosphonates, which can be used for the preparation of phosphorus-containing π-systems and as reagents for the reductive coupling of carbonyl compounds to alkenes. Phosphanylphosphonates with metal fragments coordinated to the P-lone pair have been known for a long time and they have been used for the synthesis of phosphaalkenes by means of the phospha-Horner–Wadsworth–Emmons reaction. With the original aim of incorporating phosphorus heteroatoms into classical all-carbon ethynylethene scaffolds, we entered the field of phosphanylphosphonates with the discovery that these compounds engage in complex cascade reactions with acetylenic ketones, forming 1,2-oxaphospholes, cumulenes, and bisphospholes. Later, we synthesized the first metal-free phosphanylphosphonate, which reacts with aldehydes to yield phosphaalkenes, but gives phospholones when diacetylenic ketones are used as substrates. In the final part of the account, we outline our discovery and the development of an unprecedented carbonyl–carbonyl cross-coupling reaction. This protocol offers a straightforward method for the synthesis of nonsymmetric 1,2-disubstituted alkenes directly from two dissimilar aldehydes.1 Combining Acetylenes with Phosphaalkenes2 Synthetic Examples of Acetylenic Phosphaalkenes3 The Phospha-Horner–Wadsworth–Emmons Approach to Phosphaalkenes3.1 Metal-Coordinated Phosphanylphosphonates3.2 Mechanism of the Phospha-Horner–Wadsworth–Emmons Reaction3.3 The First Metal-Free Phosphanylphosphonate and Its Reactivity with Aldehydes4 Reactions with Acetylenic Ketones4.1 Metal-Coordinated Phosphanylphosphonate and Monoacetylenic Ketones4.2 Metal-Coordinated Phosphanylphosphonate and Diacetylenic Ketones4.3 Metal-Free Phosphanylphosphonate and Diacetylenic Ketones5 Metal-Free Phosphanylphosphonate as a Coupling Reagent for Aldehydes6 E-Alkenes by the Reductive Coupling of Two Aldehydes7 Conclusions and Outlook

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3

Bonilla-Landa, Israel, Emizael López-Hernández, Felipe Barrera-Méndez, Nadia C. Salas, and José L. Olivares-Romero. "Hafnium(IV) Chloride Catalyzes Highly Efficient Acetalization of Carbonyl Compounds." Current Organic Synthesis 16, no. 6 (November 26, 2019): 913–20. http://dx.doi.org/10.2174/1570179416666190715100505.

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Background: Hafnium(IV) tetrachloride efficiently catalyzes the protection of a variety of aldehydes and ketones, including benzophenone, acetophenone, and cyclohexanone, to the corresponding dimethyl acetals and 1,3-dioxolanes, under microwave heating. Substrates possessing acid-labile protecting groups (TBDPS and Boc) chemoselectively generated the corresponding acetal/ketal in excellent yields. Aim and Objective: In this study. the selective protection of aldehydes and ketones using a Hafnium(IV) chloride, which is a novel catalyst, under microwave heating was observed. Hence, it is imperative to find suitable conditions to promote the protection reaction in high yields and short reaction times. This study was undertaken not only to find a novel catalyst but also to perform the reaction with substrates bearing acid-labile protecting groups, and study the more challenging ketones as benzophenone. Materials and Methods: Using a microwave synthesis reactor Monowave 400 of Anton Paar, the protection reaction was performed on a raging temperature of 100°C ±1, a pressure of 2.9 bar, and an electric power of 50 W. More than 40 substrates have been screened and protected, not only the aldehydes were protected in high yields but also the more challenging ketones such as benzophenone were protected. All the products were purified by simple flash column chromatography, using silica gel and hexanes/ethyl acetate (90:10) as eluents. Finally, the protected substrates were characterized by NMR 1H, 13C and APCI-HRMS-QTOF. Results: Preliminary screening allowed us to find that 5 mol % of the catalyst is enough to furnish the protected aldehyde or ketone in up to 99% yield. Also it was found that substrates with a variety of substitutions on the aromatic ring (aldehyde or ketone), that include electron-withdrawing and electrondonating group, can be protected using this methodology in high yields. The more challenging cyclic ketones were also protected in up to 86% yield. It was found that trimethyl orthoformate is a very good additive to obtain the protected acetophenone. Finally, the protection of aldehydes with sensitive functional groups was performed. Indeed, it was found that substrates bearing acid labile groups such as Boc and TBDPS, chemoselectively generated the corresponding acetal/ketal compound while keeping the protective groups intact in up to 73% yield. Conclusion: Hafnium(IV) chloride as a catalyst provides a simple, highly efficient, and general chemoselective methodology for the protection of a variety of structurally diverse aldehydes and ketones. The major advantages offered by this method are: high yields, low catalyst loading, air-stability, and non-toxicity.

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4

Lamm, Vladimir, Xiangcheng Pan, Tsuyoshi Taniguchi, and Dennis P. Curran. "Reductions of aldehydes and ketones with a readily available N-heterocyclic carbene borane and acetic acid." Beilstein Journal of Organic Chemistry 9 (April 8, 2013): 675–80. http://dx.doi.org/10.3762/bjoc.9.76.

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Acetic acid promotes the reduction of aldehydes and ketones by the readily available N-heterocyclic carbene borane, 1,3-dimethylimidazol-2-ylidene borane. Aldehydes are reduced over 1–24 h at room temperature with 1 equiv of acetic acid and 0.5 equiv of the NHC-borane. Ketone reductions are slower but can be accelerated by using 5 equiv of acetic acid. Aldehydes can be selectively reduced in the presence of ketones. On a small scale, products are isolated by evaporation of the reaction mixture and direct chromatography.

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5

Kippo, Takashi, Yuki Kimura, Mitsuhiro Ueda, Takahide Fukuyama, and Ilhyong Ryu. "Bromine-Radical-Mediated Synthesis of β-Functionalized β,γ- and δ,ε-Unsaturated Ketones via C–H Functionalization of Aldehydes." Synlett 28, no. 14 (June 29, 2017): 1733–37. http://dx.doi.org/10.1055/s-0036-1588494.

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The bromine-radical-mediated allylation reaction of aldehydes was studied. In the presence of V-65 as radical initiator, the reaction of aldehydes with allyl bromides gave β,γ-unsaturated ketones in good yields (13 examples, 45–84%). The reaction is triggered by hydrogen abstraction from the aldehyde by bromine radical to form an acyl radical, which undergoes an SH2′-type addition–elimination reaction with allyl bromides to give coupling products with liberation of bromine radical. Three-component coupling reactions comprising aldehydes, electron-deficient alkenes, and methallyl bromide also proceeded to give δ,ε-unsaturated ketones.

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6

Khalafi-Nezhad, Ali, Abolfath Parhami, Abdolkarim Zare, Amir Nasrolahi Shirazi, Ahmad Reza Moosavi Zare, and Alireza Hassaninejad. "Triarylmethyl chlorides as novel, efficient, and mild organic catalysts for the synthesis of N-sulfonyl imines under neutral conditions." Canadian Journal of Chemistry 86, no. 5 (May 1, 2008): 456–61. http://dx.doi.org/10.1139/v08-039.

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A highly efficient procedure for the preparation of N-sulfonyl imines via condensation of sulfonamides with aldehydes as well as ketones in the presence of triarylmethyl chlorides as metal-free organo-catalysts at 40 °C is described. The advantages of this class of catalysts over the reported ones are their efficiency and possibility of running reactions in neutral media that makes them suitable for acid-sensitive substrates.Key words: triarylmethyl chloride, N-sulfonyl imine, sulfonamide, aldehyde, ketone.

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7

El-Alali, Abdullah, and Ahmed S. Al-Kamali. "Reactions of 1,3-dipolar aldazines and ketazines with the dipolarophile dimethyl acetylenedicarboxylate." Canadian Journal of Chemistry 80, no. 10 (October 1, 2002): 1293–301. http://dx.doi.org/10.1139/v02-169.

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The prepared aldazines (aldehyde azines) and ketazines (ketone azines) were allowed to react with 2 mol of the acetylene derivative. The first products formed were pentalene azine derivatives, which in some cases underwent skeletal rearrangment into acyclic tetraene azines. The latter underwent, in the case of some aldazine products, further skeletal rearrangment into N-allyl pyrazoles. The occurence of these rearrangments is dependant on the nature of the aldehydes or ketones used.Key words: dimethyl acetylenedicarboxylate (DMAD), aldazines, ketazines, N-allyl pyrazoles.

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8

Steel, Patrick G. "Aldehydes and ketones." Contemporary Organic Synthesis 1, no. 1 (1994): 1. http://dx.doi.org/10.1039/co9940100001.

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9

Steel, Patrick G. "Aldehydes and ketones." Contemporary Organic Synthesis 2, no. 3 (1995): 151. http://dx.doi.org/10.1039/co9950200151.

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10

Steel, Patrick G. "Aldehydes and ketones." Contemporary Organic Synthesis 3, no. 2 (1996): 151. http://dx.doi.org/10.1039/co9960300151.

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Dissertations / Theses on the topic "Ketones and aldehydes"

1

鄧陽招 and Yeung-chiu Dennis Tang. "Accelerated decomposition of peroxynitrite by Ketones and Aldehydes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31221701.

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2

Allan, John Fraser. "Reactions of amidomagnesium compounds with ketones and aldehydes." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415132.

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3

Tang, Yeung-chiu Dennis. "Accelerated decomposition of peroxynitrite by Ketones and Aldehydes /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20897145.

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4

Esiringu, Ilker. "Intermolecular Addition Of Aldehydes To Ketones Via Acyl Phosphonates." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609441/index.pdf.

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This thesis presents a new developed method for first intermolecular aldehyde/ketone cross benzoin coupling. Protected &
#945
-keto tertiary alcohols are synthesized starting from easily available acyl phosphonates and ketones via Brook rearrangement in the presence of catalytic amount of cyanide ion. The scopes and the limitations of the methods for the synthesis of tertiary alcohols with &
#945
-keto group are discovered.

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5

Dosa, Peter I. (Peter Ian) 1973. "Catalytic asymmetric addition of organozinc reagents to aldehydes and ketones." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/47412.

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6

Cooper, Ian Antony. "The production of aldehydes and ketones in COâ†2 cooled nuclear reactors." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317757.

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7

Simpson, Elizabeth Shearer Currie. "Investigation of epoxidation of aldehydes and ketones using sulfoxonium and sulfonium ylides." Thesis, Heriot-Watt University, 1995. http://hdl.handle.net/10399/278.

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8

Beeby, A. "The photochemistry and photophysics of aldehydes, ketones and simple sugars in solution." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382884.

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9

Vaismaa, M. (Matti). "Development of benign synthesis of some terminal α-hydroxy ketones and aldehydes." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514291753.

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Abstract The synthesis of α-hydroxy aldehydes and hydroxymethyl ketones as well as their interconversion to each other are discussed in this thesis. The literature survey of the monograph reviews the synthetic methods for the preparation of 1,2-bifunctionalized hydroxy aldehydes and ketones. The keto-aldehyde isomerisation reaction catalyzed by Triosephosphate isomerase enzyme (TIM) and organic compounds that interact with the TIM are also introduced. In addition, the microwave heating techniques in organic syntheses are reviewed. The practical work consists of two entities: The synthesis of new substrate candidates and transition state analogues for a mutated monomeric TIM. These compounds are model compounds for the catalytic activity and the structural studies of the mutated monomeric TIM. The synthesis of the sulphonyl α-hydroxy ketone-based substrate candidates consists of four successive syntheses. The microwave-activation was utilized in the preparation of a carbon-sulphur bond and the synthesis of hydroxymethyl ketones. The improved synthesis of the terminal α-hydroxy ketone functionality with microwave activation is presented. The formation of charged compounds was utilized to improve the absorption of microwave energy of reaction mixtures. The design and the synthetic work were carried out in accordance to principles of green chemistry. The second part of the practical work is the development of an organocatalytic α-oxybenzoylation reaction of aldehydes with high enantiomeric selectivity. This novel method generated enantiomerically pure α-hydroxy aldehydes in the stable benzoate-protected form from achiral starting materials under mild conditions at the presence of air and moisture.

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10

Fällman, Tove. "Capturing of the carbonyl oxide intermediate in ozonolysis using aldehydes and ketones." Thesis, Uppsala universitet, Institutionen för kemi - BMC, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226240.

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Books on the topic "Ketones and aldehydes"

1

Hull, L. A. Analysis of aldehydes and ketones in the gas phase. Research Triangle Park, NC: U.S. Environmental Protection Agency, Atmospheric Sciences Research Laboratory, 1985.

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2

Frenkel, M., and K. N. Marsh, eds. Densities of Phenols, Aldehydes, Ketones, Carboxylic Acids, Amines, Nitriles, and Nitrohydrocarbons. Berlin/Heidelberg: Springer-Verlag, 2002. http://dx.doi.org/10.1007/b76771.

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3

Beeby, Andrew. The photochemistry and photophysics of aldehydes, ketones and simple sugars in solution. Norwich: University of East Anglia, 1988.

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4

Crawford, John Gordon. Engine operating parameter effects on speciated aldehyde and ketone emissions from a natural gas fuelled engine. Ottawa: National Library of Canada, 1994.

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5

Padwa, A., V. Aggarwal, J. Richardson, C. O. Kappe, B. Zwanenburg, S. J. Collier, M. J. Dabdoub, et al. Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00000.

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6

Oxidation of Alcohols to Aldehydes and Ketones. New York: Springer-Verlag, 2006. http://dx.doi.org/10.1007/b135954.

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7

Association, Research and Education. Organic Chemistry III - Arenes, Aldehydes, Ketones, and Phenols EXAM Notes. Research & Education Association, 1998.

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8

Lee, Steger Joette, Radian Corporation, and United States. Environmental Protection Agency, eds. Field validation of the DNPH method for aldehydes and ketones: Final report. Research Triangle Park, N.C: Radian Corporation, 1996.

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9

Satici, Hikmet. Samarium diiodide in synthesis: Synthesis of the C-ring of anguidine and the conversion of aldehydes and ketones into 1,2-diacetates and 1,2-diols. 1990.

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10

Standing Committee of Analysts. The Determination of Formaldehyde, Other Volatile Aldehydes, Ketones and Alcohols in Water 1988. Stationery Office Books, 1989.

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Book chapters on the topic "Ketones and aldehydes"

1

Vollhardt, Peter, and Neil Schore. "Aldehydes and Ketones." In Organic Chemistry, 1299–385. New York: Macmillan Learning, 2014. http://dx.doi.org/10.1007/978-1-319-19197-9_17.

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2

Went, C. "Aldehydes and Ketones." In Work Out Organic Chemistry, 118–34. London: Macmillan Education UK, 1988. http://dx.doi.org/10.1007/978-1-349-09726-5_7.

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3

Garcia, Jason S., and Raymond D. Harbison. "Aldehydes and Ketones." In Hamilton & Hardy's Industrial Toxicology, 445–90. Hoboken, New Jersey: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118834015.ch55.

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4

Patnaik, Pradyot. "Aldehydes and Ketones." In Handbook of Environmental Analysis, 119–24. Third edition. | Boca Raton : Taylor & Francis, CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315151946-16.

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5

Mizzoni, Renat H. "Pyridine Aldehydes and Ketones." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 123–344. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186688.ch2.

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Mizzoni, Renat H. "Pyridine Aldehydes and Ketones." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 115–87. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186695.ch2.

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Remers, William A. "Indole Aldehydes and Ketones." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 357–527. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186947.ch2.

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8

Lenhert, Anne G., and Raymond N. Castle. "Pyridazine Aldehydes, Ketones, and Alcohols." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 353–406. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186985.ch4.

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9

Davies, A. G. "Insertion Reactions and Aldehydes and Ketones." In Inorganic Reactions and Methods, 463–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145296.ch279.

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Pannell, Keith H., and Adrian M. Haiduc. "Insertion of Aldehydes, Ketones, and Ketenes." In Inorganic Reactions and Methods, 474–75. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145296.ch285.

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Conference papers on the topic "Ketones and aldehydes"

1

Shen, Y., and S. Que Hee. "15. Sampling and Analysis of Airborne Environmental Aldehydes and Ketones." In AIHce 1999. AIHA, 1999. http://dx.doi.org/10.3320/1.2762994.

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2

Movassagh, Barahman, and Ali Yousefi. "Î±-Arylchalcogenation of Aldehydes and Ketones with Diaryl Dichalcogenides Promoted by K3PO4." In The 17th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2013. http://dx.doi.org/10.3390/ecsoc-17-a041.

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Wiesenthal, K., and S. Que Hee. "221. Determination of Low Molecular Weight Aldehydes and Ketones by High Performance Liquid Chromatography." In AIHce 1997 - Taking Responsibility...Building Tomorrow's Profession Papers. AIHA, 1999. http://dx.doi.org/10.3320/1.2765349.

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Li, Guigen, Han-Xun Wei, and Subramanian Karur. "Halo Aldol Reaction of a,b-Unsaturated Ketones and Aldehydes Mediated by Titanium Tetrachloride." In The 4th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2000. http://dx.doi.org/10.3390/ecsoc-4-01838.

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Dotsenko, Victor, Andrey Levashov, Dmitriy Buriy, Valeriy Konshin, Inna Aksenova, and Nikolay Aksenov. "Oppenauer-type synthesis of α, β-acetylenic ketones from tetra(phenylethynyl)tin and aromatic aldehydes." In The 21st International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2017. http://dx.doi.org/10.3390/ecsoc-21-04807.

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Fernandes, Talita de A., Diego A. Alonso, Carmen Nájera, and Paulo R. R. Costa. "Enantioselective Conjugate Addition of Aldehydes and Ketones to Maleimides Catalyzed by a Chiral Bifunctional Nbenzoimidazol- cyclohexanediamine." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0071-2.

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Fanick, E. Robert, Paul F. Schubert, Branch J. Russell, and Robert L. Freerks. "Heavy-Duty and Heavy Light-Duty Diesel Engine Exhaust Emission Comparisons With a Fischer-Tropsch and a Conventional Diesel Fuel." In ASME 2001 Internal Combustion Engine Division Spring Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/ices2001-104.

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Abstract This study compared diesel exhaust emission for a low sulfur and a Fischer-Tropsch (F-T) diesel fuel. The comparison included regulated emissions, airtoxics, aldehydes/ketones, and greenhouse gas emissions. Testing was conducted using a Cummins B-Series engine installed in a heavy light-duty truck operating on a chassis dynamometer and on an engine dynamometer. The chassis driving cycles included city, highway, and aggressive driving operation. Engine dynamometer tests included the U.S. transient cycle. Results showed that the F-T diesel fuel substantially reduced emissions although the engine was not specifically tuned to take advantage of the unique characteristics of F-T diesel fuel.

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Swarin, Stephen J., Jeffrey F. Loo, Ema Chladek, Monica S. Drouillard, and Silvestre B. Tejada. "Advanced Emissions Speciation Methodologies for the Auto/Oil Air Quality Improvement Research Program - II. Aldehydes, Ketones, and Alcohols." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/920321.

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Uchiyama, S., I. DeGraff, and T. Kaneko. "368. A High Efficiency Diffusive Sampler for the Determination of Aldehydes and Ketones in Ambient and Indoor Air." In AIHce 2000. AIHA, 2000. http://dx.doi.org/10.3320/1.2763718.

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Tso, J., and S. Que Hee. "364. Determination of Aqueous Aldehydes and Ketones by Solid Phase Extraction with Gas Chromatography/Electron Capture Detector and Gas Chromatography/Mass Spectrometry." In AIHce 2002. AIHA, 2002. http://dx.doi.org/10.3320/1.2766306.

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Reports on the topic "Ketones and aldehydes"

1

Suri, Suresh C., and Jacob C. Marcischak. New Application of Bromotrimethylsilane: Elaboration of Aldehydes/Ketones into Homologous Alpha-Beta-Unsaturated Esters via Beta-Hydroxy Esters. Fort Belvoir, VA: Defense Technical Information Center, January 2003. http://dx.doi.org/10.21236/ada410496.

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