Academic literature on the topic 'Crotyl alcohol'

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Journal articles on the topic "Crotyl alcohol"

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Krishnamoorthy, Guna Sekar, та Seplapatty Kalimuthu Periyasamy. "Oxidation of α,β-Unsaturated Alcohols by Quinaldinium Fluorochromate". International Letters of Chemistry, Physics and Astronomy 5 (вересень 2013): 8–19. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.5.8.

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The kinetics of oxidation of α,β-unsaturated alcohols (allyl alcohol, Crotyl alcohol, Cinnamyl alcohol) by quinaldinium fluorochromate has been studied in aqueous acid medium at 313 K. α,β-unsaturated alcohols were converted to the corresponding acrolein, crotonaldehyde and cinnamaldehyde. The reaction is first order each in oxidant, substrate and H+. The decrease in dielectric constant of the medium increases the rate of the reaction. Increase in ionic strength by the addition of sodium perchlorate has no effect on the rate constant. There is no polymerization with acrylonitrile. The reaction
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Krishnamoorthy, Guna Sekar, та Seplapatty Kalimuthu Periyasamy. "Oxidation of α,β-Unsaturated Alcohols by Quinaldinium Fluorochromate". International Letters of Chemistry, Physics and Astronomy 5 (19 грудня 2012): 8–19. http://dx.doi.org/10.56431/p-91l939.

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The kinetics of oxidation of α,β-unsaturated alcohols (allyl alcohol, Crotyl alcohol, Cinnamyl alcohol) by quinaldinium fluorochromate has been studied in aqueous acid medium at 313 K. α,β-unsaturated alcohols were converted to the corresponding acrolein, crotonaldehyde and cinnamaldehyde. The reaction is first order each in oxidant, substrate and H+. The decrease in dielectric constant of the medium increases the rate of the reaction. Increase in ionic strength by the addition of sodium perchlorate has no effect on the rate constant. There is no polymerization with acrylonitrile. The reaction
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Ying, Xiangxian, Yifang Wang, Bin Xiong та ін. "Characterization of an Allylic/Benzyl Alcohol Dehydrogenase from Yokenella sp. Strain WZY002, an Organism Potentially Useful for the Synthesis of α,β-Unsaturated Alcohols from Allylic Aldehydes and Ketones". Applied and Environmental Microbiology 80, № 8 (2014): 2399–409. http://dx.doi.org/10.1128/aem.03980-13.

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ABSTRACTA novel whole-cell biocatalyst with high allylic alcohol-oxidizing activities was screened and identified asYokenellasp. WZY002, which chemoselectively reduced the C=O bond of allylic aldehydes/ketones to the corresponding α,β-unsaturated alcohols at 30°C and pH 8.0. The strain also had the capacity of stereoselectively reducing aromatic ketones to (S)-enantioselective alcohols. The enzyme responsible for the predominant allylic/benzyl alcohol dehydrogenase activity was purified to homogeneity and designated YsADH (alcohol dehydrogenase fromYokenellasp.), which had a calculated subunit
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Meyer, F. K., J. G. Drewett, and R. M. Carlson. "The Crotyl Alcohol Dianion: Addition Reactions." Synthetic Communications 16, no. 3 (1986): 261–65. http://dx.doi.org/10.1080/00397918608076308.

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N., D. VALECHHA, and K. PANDEY A. "Kinetics of Oxidation of Allyl, Crotyl and Cinnamic Alcohols by Selenium Dioxide." Journal of Indian Chemical Society Vol. 63, Jul 1986 (1986): 670–73. https://doi.org/10.5281/zenodo.6272753.

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Chemistry Department, Government Science College, Rewa-486 001 Chemistry Department, Government College, Shandol-484 001 <em>Manuscript received 2 July 1984, revised 3 March 1986, accepted 7 June 1986</em> The kinetics of oxidation of allyl, crotyl and cinnamic alcohols by selenium dioxide in 80%<em> </em>(v/v)<em> </em>acetic acid - water mixture have been investigated. The reaction is first order with respect to both alcohols and selenium dioxide. The reactions are cata&shy;lysed by a strong acid. Primary salt effect is negligible. The reaction rate increases with increase in the percentage
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Chivers, Brandon A., and Robert W. J. Scott. "Selective oxidation of crotyl alcohol by AuxPd bimetallic pseudo-single-atom catalysts." Catalysis Science & Technology 10, no. 22 (2020): 7706–18. http://dx.doi.org/10.1039/d0cy01387k.

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Lee, Adam F., Zhipeng Chang, Peter Ellis, Simon F. J. Hackett, and Karen Wilson. "Selective Oxidation of Crotyl Alcohol over Pd(111)." Journal of Physical Chemistry C 111, no. 51 (2007): 18844–47. http://dx.doi.org/10.1021/jp709944c.

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Chien, Chen-Yie, and Georg Schade. "A rotating disc study of crotyl alcohol reduction." Electrochimica Acta 33, no. 1 (1988): 59–62. http://dx.doi.org/10.1016/0013-4686(88)80032-x.

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Cormier, Morgan, Florian Hernvann, and Michaël De Paolis. "Synthetic study toward tridachiapyrone B." Beilstein Journal of Organic Chemistry 18 (December 19, 2022): 1741–48. http://dx.doi.org/10.3762/bjoc.18.183.

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A convergent approach to the skeleton of tridachiapyrone B is described taking advantage of the desymmetrization of α,α’-dimethoxy-γ-pyrone leading to α-crotyl-α’-methoxy-γ-pyrone in one step. To construct the quaternary carbon of the 2,5-cyclohexadienone of the target, a strategy based on the Robinson-type annulation of an aldehyde derived from α-crotyl-α’-methoxy-γ-pyrone was applied. The grafting of the simplified target’s side chain was demonstrated through an oxidative anionic oxy-Cope rearrangement of the tertiary alcohol arising from the 1,2-addition of a 1,3-dimethylallyl reagent to 2,
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Ozawa, Tomohiro, Lingyiming Yu, Yasuhiro Yamada, and Satoshi Sato. "Isomerization of Crotyl Alcohol Catalyzed by V2O5-modified Silica." Chemistry Letters 50, no. 9 (2021): 1635–38. http://dx.doi.org/10.1246/cl.210290.

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Dissertations / Theses on the topic "Crotyl alcohol"

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Pimentel, Bruna Silvestroni. "Constituintes de ceras cuticulares de espécies de Croton L." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-06032015-150145/.

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O gênero Croton possui aproximadamente 1300 espécies amplamente distribuídas em zonas tropicais e subtropicais do novo e velho mundo e é o segundo maior gênero de Euphorbiaceae. No presente trabalho, foram analisadas a composição e a morfologia das ceras foliares cuticulares de 13 espécies de Croton. Para a maioria das espécies, foram amostrados três indivíduos. A morfologia das ceras foi analisada por microscopia eletrônica de varredura. Diversos tipos de depósitos cerosos foram observados (amorfos, plaquetas, grânulos), principalmente na face adaxial e caracterizando grupos de espécies. A ob
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Krstic, Vesna. "Catalizadores de Rh-soportado y su aplicación en la hidrogenación de crotonaldehído." Doctoral thesis, Universidad de Cantabria, 2005. http://hdl.handle.net/10803/10685.

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Este trabajo ha sido realizado en el contexto de los proyectos de MAT 2002-03808 y MAT 2002-02158, financiados por la Dirección General de Investigación del Ministerio de Ciencia y Tecnología (MCyT). Se han sintetizado y caracterizado catalizadores Rh-soportado (sólo o promovido con Sn) utilizando diferentes tipos de soportes. Como soportes de catalizadores se utilizaron tanto materiales microporosos, silicatos laminares (bentonitas) de distinta procedencia y bentonitas modificadas mediante la introducción de pilares (PILC's) o transformadas en productos zeolíticos; como materiales mesoporosos
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Book chapters on the topic "Crotyl alcohol"

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Lide, David R. "trans-Crotonyl alcohol." In Handbook of Organic Solvents. CRC Press, 2024. http://dx.doi.org/10.1201/9781003575191-103.

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Hutchings, Graham J., Paul G. Firth, Darren F. Lee, et al. "Shape selective epoxidation of crotyl alcohol with H2O2 in the presence of TS-1." In Studies in Surface Science and Catalysis. Elsevier, 1997. http://dx.doi.org/10.1016/s0167-2991(97)81015-4.

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Taber, Douglass. "The Keck Synthesis of Epothilone B." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0101.

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The total synthesis of Epothilone B 4, the first natural product (with Epothilone A) to show the same microtubule-stabilizing activity as paclitaxel (Taxol®), has attracted a great deal of attention since that activity was first reported in 1995. The total synthesis of 4 devised (J. Org. Chem. 2008, 73, 9675) by Gary E. Keck of the University of Utah was based in large part on the stereoselective allyl stannane additions (e.g. 1 + 2 → 3 ) that his group originated. The allyl stannane 2 was prepared from the acid chloride 5. Exposure of 5 to Et3N generated the ketene, that was homologated with
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Taber, Douglass. "The Rychnovsky Synthesis of Leucascandrolide A." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0087.

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The macrolactone leucascandrolide A 4, isolated from the calcareous sponge L. caveolata, has both cytotoxic and antifungal activity. The key step in the synthesis of 4 reported (J. Org. Chem. 2007, 72, 5784) by Scott D. Rychnovsky of the University of California, Irvine, was the stereoselective condensation of the aldehyde 1 with the allyl vinyl ether 2 to give 3. The cyclic ether of 1 was assembled from the crotyl addition product 5. Tandem Ru-catalyzed metathesis/hydrogenation converted 5 to the lactone 6. Reduction of 6 to the lactol followed by activation as the acetate gave 7, axial-selec
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Taber, Douglass. "Stereocontrolled Construction of Arrays of Stereogenic Centers." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0043.

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The Sharpless osmium-catalyzed asymmetric dihydroxylation is widely used. Lawrence Que, Jr. of the University of Minnesota designed (Angew. Chem. Int. Ed. 2008, 47, 1887) a catalyst with the inexpensive Fe that appears to be at least as effective, converting 1 to 2 in high ee. In an alternative approach, Bernd Plietker of the Universität Stuttgart used (J. Org. Chem. 2008, 73, 3218) chiral auxiliary control to direct dihydroxylation. The diastereomers of 4 were readily differentiated. Defined arrays of stereogenic centers can also be constructed by homologation. Armando Córdova of Stockholm Un
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Taber, Douglass F. "The Ding Synthesis of Steenkrotin A." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0106.

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Steenkrotin A 3 was isolated from Croton steenkampianus Gerstner, widely used in folk medicine for the treatment of coughs, fever, malaria, and rheumatism. Hanfeng Ding of Zhejiang University envisioned (Angew. Chem. Int. Ed. 2015, 54, 6905) that the intriguingly compact core of 3 could be assembled by reductive cyclization of the alde­hyde 1 to 2, followed by intramolecular aldol condensation. The diastereoselective assembly of 1 from the cycloheptenone core 4 depended on the conformational preferences of the seven-membered ring. Enol ether forma­tion followed by Rubottom oxidation led to the
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Taber, Douglass. "Alkene Metathesis: Synthesis of Kainic Acid, Pladienolide B and Amphidinolide Y." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0028.

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As alkene metathesis has developed into one of the tools of organic synthesis, many practical questions have arisen. In the course of a synthesis (Organic Lett. 2007, 9, 1635) of the important neuropharmacological tool (-)-kainic acid 7, Tohru Fukuyama of the University of Tokyo prepared the key intermediate 1 by chiral auxiliary mediated coupling of crotonyl chloride with acetadehyde. Dibal reduction gave the hemiaminal, which underwent reductive amination with glycine methyl ester, leading to the alkene 2. Alkene metathesis of the derived ester 3 to form the unsaturated lactone 4 was then ex
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Taber, Douglass. "The Carter Synthesis of (-)-Lycopodine." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0099.

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Rich G. Carter of Oregon State University described (J. Am. Chem. Soc. 2008, 130, 9238) the first enantioselective synthesis of the Lycopodium alkaloid (-)-lyopodine 3. A key step in the assembly of 3 was the diastereoselective intramolecular Michael addition of the keto sulfone of 1 to the enone, leading to the cyclohexanone 2. The key cyclization substrate 1 bore a single secondary methyl group. While that could have been derived from a natural product, it was operationally easier to effect chiral auxiliary controlled conjugate addition to the crotonyl amide 4, leading, after methoxide excha
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