Academic literature on the topic 'Crossed-aldol condensation'

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Journal articles on the topic "Crossed-aldol condensation"

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Chan, T. H., C. J. Li, and Z. Y. Wei. "Crossed aldol type condensation reactions in aqueous media." Journal of the Chemical Society, Chemical Communications, no. 6 (1990): 505. http://dx.doi.org/10.1039/c39900000505.

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Mead, Dennis, Rhonda Loh, A. E. Asato, and R. S. H. Liu. "Fluorinated Retinoids via Crossed Aldol Condensation of 1,1,1-Trifluoroacetone." Tetrahedron Letters 26, no. 24 (1985): 2873–76. http://dx.doi.org/10.1016/s0040-4039(00)98859-2.

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Suemune, Hiroshi, Osamu Yoshida, Jun Uchida, Yukiko Nomura, Masakazu Tanaka, and Kiyoshi Sakai. "Asymmetric ring cleavage reaction based on crossed aldol condensation." Tetrahedron Letters 36, no. 40 (1995): 7259–62. http://dx.doi.org/10.1016/0040-4039(95)01504-b.

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4

Le, Giau Hoang, Duong Thi Thuy Ngo, Dong Ut Thanh, and Fritz Duus. "Synthesis of 5-arylidene-3-methylrhodanines catalyzed by 1-butyl-3-methylimidazolium chloride in water under microwave irradiation condition." Science and Technology Development Journal 19, no. 2 (2016): 58–63. http://dx.doi.org/10.32508/stdj.v19i2.804.

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Six 5-arylidene-3-methylrhodanine derivatives were synthesized by the crossed aldolization of aromatic aldehydes with 3- methylrhodanine using 1-butyl-3- methylimidazolium chloride ([BMI]Cl) as phase transfer catalyst in water. The reactions, under microwave irradiation (160 watts) during 10 minutes, afforded the yield of 59–83 %. This is the first time [BMI]Cl was used as phase transfer catalyst in the aldol condensation.
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Suemune, Hiroshi, Jun Uchida, and Kiyoshi Sakai. "Ring Cleavage Reaction of Heterocyclic Ketones Based on Crossed Aldol Condensation." HETEROCYCLES 43, no. 3 (1996): 625. http://dx.doi.org/10.3987/com-95-7339.

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6

Riadi, Y., R. Mamouni, R. Azzalou, et al. "Animal bone meal as an efficient catalyst for crossed-aldol condensation." Tetrahedron Letters 51, no. 51 (2010): 6715–17. http://dx.doi.org/10.1016/j.tetlet.2010.10.056.

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7

NAKA, Hiroaki, Yasuhiro KANEDA, and Takeo KURATA. "Crossed Aldol Condensation using Anion Exchange Resin as Solid Base Catalyst." Journal of Oleo Science 50, no. 10 (2001): 813–21. http://dx.doi.org/10.5650/jos.50.813.

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SUEMUNE, H., O. YOSHIDA, J. UCHIDA, Y. NOMURA, M. TANAKA, and K. SAKAI. "ChemInform Abstract: Asymmetric Ring Cleavage Reaction Based on Crossed Aldol Condensation." ChemInform 27, no. 3 (2010): no. http://dx.doi.org/10.1002/chin.199603084.

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9

Nalini, S., K. G. Sekar, S. Srinivasan, I. Muthuvel, and G. Thirunarayanan. "Insect Antifeedant Active Substituted Styryl 4-Ethoxyphenyl Ketones." Journal of Scientific Research 15, no. 3 (2023): 783–91. http://dx.doi.org/10.3329/jsr.v15i3.63033.

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About eleven substituted styryl 4-ethoxy phenyl ketones were synthesized by ultrasound-promoted greener solvent assisted Crossed Aldol condensation of 4-ethoxy acetophenone and various substituted benzaldehydes. In this method, the obtained yield was more than 85 %. These unsaturated ketones were characterized by their analytical and spectroscopic data. The insect antifeedant activity of these ketones was evaluated by castor leaf discs with the 4th instar larvae Achoea Janata L. All enones showed weak, moderate, and good insect antifeedant activity.
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Veisi, Hojat, Zahra Vafajoo, Behrooz Maleki, and Malek Taher Maghsoodlou. "Facile and Convenient Synthesis of 5-Arylalkylidenerhodanines by Electrocatalytic Crossed Aldol Condensation." Phosphorus, Sulfur, and Silicon and the Related Elements 188, no. 6 (2013): 672–77. http://dx.doi.org/10.1080/10426507.2012.717134.

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Book chapters on the topic "Crossed-aldol condensation"

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Wachter, Nanette M. "Using NMR To Investigate Products of Aldol Reactions: Identifying Aldol Addition versus Condensation Products or Conjugate Addition Products from Crossed Aldol Reactions of Aromatic Aldehydes and Ketones." In ACS Symposium Series. American Chemical Society, 2013. http://dx.doi.org/10.1021/bk-2013-1128.ch007.

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Jones, John. "Aldol condensations and related reactions." In Core Carbonyl Chemistry. Oxford University Press, 1997. http://dx.doi.org/10.1093/hesc/9780198559597.003.0009.

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This chapter explores aldol condensations and related reactions. The reactions of enols and enolates with electrophiles are not confined to the simple α substitutions so far discussed. The electrophile can also be a carbonyl compound, and, as with the attack of simpler nucleophiles on carbonyl groups, the formation of a tetrahedral adduct can be followed by protonation, dehydration, or loss of a leaving group. Aldol condensations, whether carried out with acid or base catalysis, are often followed by spontaneous dehydration. Dehydration is practically the norm for acid-catalyzed conditions. Th
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Taber, Douglass F. "Arrays of Stereogenic Centers: The Davies Synthesis of Acosamine." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0041.

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Babak Borhan of Michigan State University found (Angew. Chem. Int. Ed. 2011, 50, 2593) that the ligand developed for asymmetric osmylation worked well for the enantioselective cyclization of 1 to 2. Kyungsoo Oh of IUPUI devised (Org. Lett. 2011, 13, 1306) a Co catalyst for the stereocontrolled addition of 4 to 3 to give 5. Michael J. Krische of the University of Texas Austin prepared (Angew. Chem. Int. Ed. 2011, 50, 3493) 8 by Ir*-mediated oxidation/addition of 7 to 6. Yixin Lu of the National University of Singapore employed (Angew. Chem. Int. Ed. 2011, 50, 1861) an organocatalyst to effect t
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