Academic literature on the topic 'Acetalius'

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Journal articles on the topic "Acetalius"

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Yin, Zi-Wei, and Li-Zhen Li. "A new species of Acetalius Sharp from eastern China (Coleoptera, Staphylinidae, Pselaphinae)." ZooKeys 592 (May 25, 2016): 93–101. https://doi.org/10.3897/zookeys.592.8769.

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The genus Acetalius Sharp currently contains two species from Japan. In this paper, a third species, A. grandis Yin & Li, sp. n., is described from eastern China. The foveal pattern of Acetalius, and polymorphism and major diagnostic features of A. grandis are figured. An updated key to Acetalius species is provided.
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Besuchet, C. "Le genre Acetalius Sharp (Coleoptera: Pselaphidae)." Revue suisse de zoologie. 92 (1985): 761–66. http://dx.doi.org/10.5962/bhl.part.81909.

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Besuchet, Claude. "Le genre Acetalius Sharp (Coleoptera: Pselaphidae)." Revue suisse de zoologie 92 (June 12, 1985): 761–66. https://doi.org/10.5281/zenodo.13483460.

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Besuchet, Claude. "Le genre Acetalius Sharp (Coleoptera: Pselaphidae)." Revue suisse de zoologie 92 (June 7, 1985): 761–66. https://doi.org/10.5281/zenodo.13483460.

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Besuchet, Claude. "Le genre Acetalius Sharp (Coleoptera: Pselaphidae)." Revue suisse de zoologie 92 (July 3, 1985): 761–66. https://doi.org/10.5281/zenodo.13483460.

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Besuchet, Claude. "Le genre Acetalius Sharp (Coleoptera: Pselaphidae)." Revue suisse de zoologie 92 (July 10, 1985): 761–66. https://doi.org/10.5281/zenodo.13483460.

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Besuchet, Claude. "Le genre Acetalius Sharp (Coleoptera: Pselaphidae)." Revue suisse de zoologie 92 (July 17, 1985): 761–66. https://doi.org/10.5281/zenodo.13483460.

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Yin, Zi-Wei, and Li-Zhen Li. "A new species of Acetalius Sharp from eastern China (Coleoptera, Staphylinidae, Pselaphinae)." ZooKeys 592 (May 25, 2016): 93–101. http://dx.doi.org/10.3897/zookeys.592.8769.

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Kantlehner, Willi, Birgit Heckel, and Jochen Mezger. "Orthoamide und Iminiumsalze, CI. Umsetzungen von N,N,N′,N′-Tetramethylharnstoffdiethylacetal mit CH2-aciden Verbindungen." Zeitschrift für Naturforschung B 75, no. 9-10 (2020): 865–80. http://dx.doi.org/10.1515/znb-2020-0072.

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AbstractN,N,N′,N′-Tetramethylurea diethylacetal reacts with CH2-acidic compounds as benzylcyanide, cyanoacetic acid derivatives malonodinitrile and nitromethane to give ketene aminals or ketene-O,N-acetales. Low polar solvents favour mostly the formation of ketenaminals. The yields of ketenaminals and ketene-O,N-acetals can be improved in some cases by addition of trimethylsilyldimethylamine. The reactions of the urea acetal with diethylmalonate, ore acetyl acetone, stops at the stage of the N,N′,N″-permethylated guanidinium salts with carbanionic counterions. The formation of bis(dimethylamin
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Willand-Charnley, Rachel, and Timothy J. Paris. "Modern Synthesis and Chemistry of Stabilized Ketene N,O-Acetals." Synthesis 54, no. 06 (2021): 1537–50. http://dx.doi.org/10.1055/a-1713-8481.

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AbstractKetene N,O-acetals are robust and versatile synthons. Herein, we outline the synthesis of stable ketene N,O-acetals in the twenty-first century. In addition, we review recent developments in the chemistry of ketene N,O-acetals, as it applies to the vinylogous Mukaiyama aldol reaction, electrolysis, and pericyclic transformations. While dated reports rely on in situ use, modern methods of ketene N,O-acetal synthesis are heavily oriented towards producing products with high ‘bench’ stability; moreover, in the present century, chemists typically enhance the stability of ketene N,O-acetals
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Dissertations / Theses on the topic "Acetalius"

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Juškėnas, Robertas. "Synthesis of tricyclic heterosystems based on pyrazolo[3,4-d]pyrimidine framework. Study of intramolecular reaction of pyrimidine nitrogen atom with O,O-acetals." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140630_154044-28576.

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The development of heterocyclic chemistry is important for various science areas and for the industry. The main task of this branch of chemistry is the search for the new, more effective synthetic methods for obtaining heterocyclic derivatives. That covers not only the formation of heterocycles, but also their functionalization, which leads to the creation of compounds having various chemical and physical properties. The accomplishments of this area are applied in biochemistry, pharmacochemistry, photophysics and other branches of science and industry. The creation of effective heterocycles sy
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Juškėnas, Robertas. "Triciklių heterosistemų, turinčių pirazolo[3,4-d]pirimidino fragmentą, sintezė. Intramolekulinės pirimidino azoto atomo reakcijos su O,O-acetaliais tyrimas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140630_154058-49723.

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Heterociklų chemijos vystymasis turi didelę reikšmę įvairioms mokslo sritims ir pramonės raidai. Pagrindinis šios chemijos srities uždavinys – kurti naujus heterociklinių junginių sintezės metodus, leidžiančius paprasčiau, efektyviau gauti norimos struktūros junginius. Tai apima ne tik heterociklų formavimo būdus, bet ir jų funkcionalizavimą, leidžiantį sukurti įvairiomis cheminėmis ir fizikinėmis savybėmis pasižyminčių junginių įvairovę. Šios mokslo srities pasiekimai pritaikomi biochemijoje, farmacijoje, fotofizikoje ir kitose mokslo ir pramonės šakose. Šiame darbe buvo siekiama sukurti efek
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Correia, Luis Miguel de Arez Romao e. Brito. "Chiral acetals." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308670.

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Gleixner, Renate Maria. "Asymmetric organocatalytic allylation of acetals." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3579/.

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The addition of allylmetals to aldehydes, particularly in an asymmetric fashion, is of prime importance in the synthetic chemist’s arsenal of C–C bond-forming methodologies, as the secondary homoallylic alcohol products are primed for further transformations. So far, reagent-controlled approaches with chiral metal-based Lewis acids have been the most effective means for controlling the enantioselectivity of this reaction. However, this approach cannot be used when acetals are employed as the latent electrophiles. Since Brønsted acids also mediate the Hosomi-Sakurai reaction of acetals, we hypo
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Dominey, Andrew Philip. "The competitive formation of bicyclic acetals." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624108.

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Scott, Robert John. "Studies of the iron(III) mediated oxidative ring opening of cyclopropyl ethers and acetals for radical cyclisations." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327495.

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Ottone, Myrlene de Oliveira. "S?ntese de ?steres versus eterifica??o e de 1,3 e 1,5-dioxolanas versus condensa??o, catalisadas pelo catalisador amorfo e hidrof?lico, SiO2-SO3H." UFVJM, 2016. http://acervo.ufvjm.edu.br/jspui/handle/1/1430.

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?rea de concentra??o: Qu?mica org?nica.<br>Data de aprova??o retirada da vers?o impressa do trabalho.<br>Palavras-chave ausentes no Resumo/Abstract.<br>Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-08-04T17:58:56Z No. of bitstreams: 2 myrlene_oliveira_ottone.pdf: 35150534 bytes, checksum: f6a5ce4d99508eed910f62e1d6984580 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-08-14T13:58:08Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d4
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Parrain, Jean-Luc. "Acetals organostanniques : preparation, reactivite et utilisations en synthese organique." Nantes, 1990. http://www.theses.fr/1990NANT2005.

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Des vinyletains portant une fonction acetal en position allylique ou homoallylique ont ete synthetises par hydrostannation des alcynes appropries a l'echelle de la demi-mole. Ces nouveaux reactifs, facilement stockables, se comportent respectivement comme de remarquables equivalents de beta-formylvinyl-anions ou de beta-(formylmethyl) vinylanions. Leurs potentialites ont ete principalement explorees au travers des reactions impliquant des transmetallations par le butyllithium ou les cyanocuprates ainsi que dans les reactions de couplage avec les halogenures d'aryle et d'acyle effectuees en pre
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Ye, Guozhong. "Synthesis and reactions of cyclic ketene-N,N-acetals." Diss., Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-09142008-210135.

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Thavornprasert, Kaew-arpha. "Production of acetals from bio-resourced alcohols over bifunctional catalysts." Electronic Thesis or Diss., Lille 1, 2013. http://www.theses.fr/2013LIL10016.

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La biomasse est une matière première renouvelable pour un large éventail de produits chimiques à haute valeur ajoutée, comme les carburants. Les acétals, tels que le diméthoxyméthane (DMM) et le diethoxyéthane (DEE), peuvent être ainsi produits à partir respectivement du méthanol et de l'éthanol. Cette étude concerne la synthèse des acétals via une conversion directe de l'alcool. La synthèse en DMM est étudiée sur un catalyseur oxyde mixte FeMo faisant intervenir les fonctions d'oxydo-réduction et acide. 50% de rendement en DMM est obtenu à 255 °C sur le catalyseur comportant un rapport Mo/Fe
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Books on the topic "Acetalius"

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Caza, Pauline. Synthesis of vitamin A intermediates by the Wittig Reaction using phosphonate acetals and [beta]-ionone. Laurentian University, 1991.

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Wilson, Jeffery J. Modifications to the Suzuki reaction and mechanistic insights on the NBS mediated cleavage of benzylidene acetals. Brock University, Dept. of Chemistry, 2003.

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Łukaszczyk, Jan. Wpływ struktury wielopodstawionych pochodnych dioksolanu na reakcje przeniesienia jonu wodorkowego, oraz, aktywność odpowiednich soli dioksoleniowych w polimeryzacji cyklicznych acetali. Dział Wydawnictw Politechniki Śląskiej, 1985.

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Warriner, S. L., S. Challenger, G. J. Rowlands, et al. Acetals: Hal/X and O/O, S, Se, Te. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-029-00000.

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Otera, J., C. Kibayashi, N. Yamazaki, et al. Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00000.

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Weathers, Rashida Monique. Comparison of acetals as in situ modifiers for supercritical fluid extraction of carotenes with carbon dioxide. 1997.

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The World Market for Acetals, Hemiacetals, and Their Halogenated, Sulfonated, Nitrated, or Nitrosated Derivatives: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

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Parker, Philip M. The World Market for Acetals, Hemiacetals, and Their Halogenated, Sulfonated, Nitrated, or Nitrosated Derivatives: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Acetals, Hemiacetals, and Their Halogenated, Sulfonated, Nitrated, or Nitrosated Derivatives in United States. ICON Group International, Inc., 2006.

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Benneche, Tore, Stephen Challenger, Chris Cordier, and Cristina De Meo. Science of Synthesis : Houben-Weyl Methods of Molecular Transformations Vol. 29 : Acetals: Hal/X and o/o, S, Se, Te. Thieme Medical Publishers, Incorporated, 2007.

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Book chapters on the topic "Acetalius"

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Gooch, Jan W. "Acetals." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_100.

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Murai, T., and M. Yoshimatsu. ",-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00484.

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Yamashita, M. ",-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00524.

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Takeda, T., and A. Tsubouchi. ",-Acetals." In Acetals: O/N, S/S, S/N, and N/N and Higher Heteroatom Analogues. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-030-00115.

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"Acetals." In Substance index : from the 4th edition and the additional and supplementary volumes to the 4th edition, edited by Backes, Fröhlich, and Padeken. Georg Thieme Verlag, 2000. http://dx.doi.org/10.1055/b-0035-114385.

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Serle, Allan C. "Acetals." In Engineering Thermoplastics. CRC Press, 2020. http://dx.doi.org/10.1201/9781003066156-6.

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Ward, Robert S. "Selective protection of bifunctional compounds." In Bifunctional Compounds. Oxford University Press, 1994. http://dx.doi.org/10.1093/hesc/9780198558088.003.0010.

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This chapter addresses a problem which frequently arises with a molecule that contains two reactive functional groups: how can one carry out a selective reaction on one group without affecting the other? It clarifies how acetals can be used to protect aldehyde or ketone groups while transformations are carried out elsewhere in a molecule. It also implies that acetals can be used to protect diols and simple alcohols, noting that they are often preferable to simple ether protecting groups as they can be removed under very mild conditions. The chapter points out that tetrahydropyranyl and methoxy
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Merino, P. "OR/OSi Acetals: Alkyl Silyl Acetals." In Acetals: Hal/X and O/O, S, Se, Te. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-029-00699.

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"I,X-Acetals to Sb-Acetals." In Substance index : from the 4th edition and the additional and supplementary volumes to the 4th edition, edited by Backes, Fröhlich, and Padeken. Georg Thieme Verlag, 2000. http://dx.doi.org/10.1055/b-0035-114326.

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"Sn-Acetals to Br,Br-Acetals." In Substance index : from the 4th edition and the additional and supplementary volumes to the 4th edition, edited by Backes, Fröhlich, and Padeken. Georg Thieme Verlag, 2000. http://dx.doi.org/10.1055/b-0035-114327.

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Conference papers on the topic "Acetalius"

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Schaedeli, Ulrich P., Norbert Muenzel, and Heinz E. Holzwarth. "1,3-dioxolyl acetals as powerful crosslinkers of phenolic resin." In SPIE'S 1993 Symposium on Microlithography, edited by William D. Hinsberg. SPIE, 1993. http://dx.doi.org/10.1117/12.154743.

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Harris, Fraser, and Jerry J. Leyden. "Selection Criteria For Plastics Used in Through­Hull Fittings." In SNAME 7th Chesapeake Sailing Yacht Symposium. SNAME, 1985. http://dx.doi.org/10.5957/csys-1985-003.

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The growing use of various plastics used in fittings for modern yachts has been of increasing concern to marine surveyors and yacht owners alike. Al though desirable from a cost and corrosion resistance standpoint compared to bronze, the selection of suitable materials is confusing and complex. Based on consideration of appropriate properties, viable choices should be limited to fiberglass reinforced nylons, acetals and PBT' s.
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Junkers, Thomas, Stephan Kobben, and Anitha Ethirajan. "Synthesis of Degradable PolyMMA via Copolymerization with Cyclic Ketene Acetals." In 1st International Electronic Conference on Materials. MDPI, 2014. http://dx.doi.org/10.3390/ecm-1-d002.

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Marin-Luna, Marta, Angel Vidal, and Mateo Alajarin. "Synthesis of fused indenes by cyclization of 2-allenylbenzaldehyde (dithio)acetals." In The 15th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2011. http://dx.doi.org/10.3390/ecsoc-15-00630.

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Silva, Angelo Amaro T. da, Tamires de O. B. Dias, and Alessandro B. C. Simas. "Selective mono-O-alkylation (protection) of carbohydrates catalyzed by stannylene acetals." In 14th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0039-1.

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Zou, Y., J. Feng, J. Li, and C. Ye. "Study on the nonlinear optical properties of substituted ketene N,S-acetals." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835734.

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Jordão, Alessandro K., David R. da Rocha, and Vitor F. Ferreira. "Synthesis of New N,O-Acetals 2-Amino-1,4-naphthoquinones Derivatives Under Microwave Irradiation." In 14th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0062-1.

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Vinogradov, Andrey, and Vyacheslav Platonov. "Reactions of polyfluoroarylzinc compounds with Vilsmeier-Haack reagent; new synthesis of polyfluorinated aromatic aldehydes and acetales." In The 15th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2011. http://dx.doi.org/10.3390/ecsoc-15-00607.

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Krunić, Mihajlo J., Jelena Z. Penjišević, Slađana Kostić-Rajačić, Vladimir B. Šukalović, Deana B. Andrić, and Ivana I. Jevtić. "Pyrazole/tacrine derivatives as potential cholinesterase inhibitors." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.567k.

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Two new tacrine/pyrazole conjugates were designed, synthesized, and pharmacologically evaluated for their inhibitory activity toward acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). A scalable and cost-efficient synthetic route was developed, and key reaction steps for the synthesis of compounds 4a,b were nucleophilic substitution of α-aroylketene dithioacetals with tacrine intermediates, followed by cyclocondensation of respective N,S-acetals with hydrazine hydrate. The preliminary pharmacological evaluation revealed high inhibitory activities of 4a,b toward AChE (180 and 259 nM
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Aseda, Dorothée, Xavier Montagne, and Philippe Dagaut. "Homogeneous Charge Compression Ignition: formulation effect of a Diesel fuel on the Initiation and the Combustion - Potential of acetals Impact in a Diesel Base Fuel." In 8th International Conference on Engines for Automobiles. SAE International, 2007. http://dx.doi.org/10.4271/2007-24-0018.

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Reports on the topic "Acetalius"

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Cochoy, Robert E., Raymond R. McGuire, and Scott A. Shackelford. One-Step Synthesis of Polynitroaliphatic Acetals and Ethers. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada203510.

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