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Journal articles on the topic 'Pent-2-en-3-one'

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Published: 4 June 2021
Last updated: 4 February 2022

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1

Venter, Gertruida J. S., Alice Brink, Gideon Steyl, and Andreas Roodt. "4-(2-Chlorophenylamino)-pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 68, no. 11 (2012): o3101—o3102. http://dx.doi.org/10.1107/s1600536812042043.

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2

Venter, Gertruida J. S., Gideon Steyl, and Andreas Roodt. "4-(2-Methylanilino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 66, no. 7 (2010): o1593—o1594. http://dx.doi.org/10.1107/s1600536810021045.

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3

Harrad, Mohamed Anoir, Brahim Boualy, Abdelghani Oudahmane, Daniel Avignant, and Corrado Rizzoli. "(Z)-4-(2-Naphthylamino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 67, no. 7 (2011): o1818. http://dx.doi.org/10.1107/s1600536811024494.

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4

Fatiha, Benghanem, Keraghel Saida, Chahmana Safia, Ourari Ali, and Brelot Lydia. "(Z)-4-(2-Hydroxyanilino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 68, no. 7 (2012): o2188—o2189. http://dx.doi.org/10.1107/s1600536812027894.

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5

Venter, Gertruida J. S., Gideon Steyl, and Andreas Roodt. "4-(2,3-Dimethylanilino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 68, no. 10 (2012): o2930—o2931. http://dx.doi.org/10.1107/s1600536812038779.

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6

Venter, Gertruida J. S., Gideon Steyl, and Andreas Roodt. "4-[(4-Methylphenyl)amino]pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 66, no. 11 (2010): o3011—o3012. http://dx.doi.org/10.1107/s1600536810043680.

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7

Venter, Gertruida J. S., Gideon Steyl, and Andreas Roodt. "4-(2,6-Dibromo-4-fluoroanilino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 67, no. 11 (2011): o3092—o3093. http://dx.doi.org/10.1107/s1600536811044606.

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8

Venter, Gertruida J. S., Gideon Steyl, and Andreas Roodt. "2,6-Dichloroaniline–4-(2,6-dichloroanilino)pent-3-en-2-one (1/2)." Acta Crystallographica Section E Structure Reports Online 69, no. 1 (2012): o34—o35. http://dx.doi.org/10.1107/s1600536812049227.

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9

Berry, Jennifer L., Dennis R. Dillin, and Darrell G. Watson. "The photochemistry of 4-(n-methylanilino)-pent-3-en-2-one." Tetrahedron Letters 26, no. 2 (1985): 143–46. http://dx.doi.org/10.1016/s0040-4039(00)61864-6.

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10

Pastrán, Jesús, Andrea Ramírez, Giuseppe Agrifoglio, Anthony Linden, and Romano Dorta. "(Z)-4-(2,5-Di-tert-butylanilino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 67, no. 6 (2011): o1405—o1406. http://dx.doi.org/10.1107/s1600536811017296.

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11

Park, Ka Hyun, Min Jeong Go, Hwi Hyun Lee, Sungae Kim, and Junseong Lee. "4-{[(1S,2R)-2-Hydroxyindan-1-yl]amino}pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 68, no. 8 (2012): o2455. http://dx.doi.org/10.1107/s1600536812031169.

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In the molecule of the title compound, C14H17NO2, the dihedral angle formed by the mean planes through the indan ring system and the aminopentenone fragment is 83.26 (13)°. An intramolecular N—H...O hydrogen bond is observed. In the crystal, molecules are linked into one-dimensional chains extending along the [010] directionviaO—H...O and C—H...O hydrogen bonds.
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12

Vencato, Ivo, Silvio Cunha, Valeria Rocha, Zenis Novais da Rocha, and Carlito Lariucci. "The azo–enaminone 4-(E)-amino-3-[(E)-2-chlorophenyldiazenyl]pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 60, no. 10 (2004): o1704—o1706. http://dx.doi.org/10.1107/s1600536804020124.

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13

Raţ, Ciprian, Carmen Comşa, and Cristian Silvestru. "Dichlorido[(Z)-4-(2,6-diisopropylanilino)pent-3-en-2-one]dimethyltin(IV)." Acta Crystallographica Section E Structure Reports Online 66, no. 2 (2010): m130. http://dx.doi.org/10.1107/s1600536809055810.

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14

Parekh, B. B., D. H. Purohit, P. Sagayaraj, H. S. Joshi, and M. J. Joshi. "Growth and characterization of 4-(2-hydroxyphenylamino)-pent-3-en-2-one single crystals." Crystal Research and Technology 42, no. 4 (2007): 407–15. http://dx.doi.org/10.1002/crat.200610836.

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15

Akerman, Kate J., and Orde Q. Munro. "An X-ray crystallographic and density functional theory study of (3Z)-4-(5-ethylsulfonyl-2-hydroxyanilino)pent-3-en-2-one and (3Z)-4-(5-tert-butyl-2-hydroxyanilino)pent-3-en-2-one." Acta Crystallographica Section C Crystal Structure Communications 69, no. 3 (2013): 258–62. http://dx.doi.org/10.1107/s0108270113002369.

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The Schiff base enaminones (3Z)-4-(5-ethylsulfonyl-2-hydroxyanilino)pent-3-en-2-one, C13H17NO4S, (I), and (3Z)-4-(5-tert-butyl-2-hydroxyanilino)pent-3-en-2-one, C15H21NO2, (II), were studied by X-ray crystallography and density functional theory (DFT). Although the keto tautomer of these compounds is dominant, the O=C—C=C—N bond lengths are consistent with some electron delocalization and partial enol character. Both (I) and (II) are nonplanar, with the amino–phenol group canted relative to the rest of the molecule; the twist about the N(enamine)—C(aryl) bond leads to dihedral angles of 40.5 (
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16

Winkelmann, Karin, Metin San, Zacharias Kypriotakis, Helen Skaltsa, Blazenka Bosilij, and Jörg Heilmann. "Antibacterial and Cytotoxic Activity of Prenylated Bicyclic Acylphloroglucinol Derivatives from Hypericum amblycalyx." Zeitschrift für Naturforschung C 58, no. 7-8 (2003): 527–32. http://dx.doi.org/10.1515/znc-2003-7-814.

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Abstract Two new bicyclic acylphloroglucinol derivatives, hypercalyxone A (1-[5,7-dihydroxy-2-methyl- 3-(3-methyl-but-2-enyl)-2-(4-methyl-pent-3-enyl)-chroman-8-yl]-2-methyl-propan-1-one, 1) and B (1-[5,7-dihydroxy-2-methyl-3-(3-methyl-but-2-enyl)-2-(4-methyl-pent-3-enyl)-chroman- 8-yl]-2-methyl-butan-1-one, 2), have been isolated from the petroleum ether extract of the aerial parts of Hypericum amblycalyx, together with two further compounds (1-[5,7- dihydroxy-2-methyl-2-(4-methyl-pent-3-enyl)-chroman-8-yl]-2-methyl-propan-1-one, 3 and 1-[5,7-dihydroxy-2-methyl-2-(4-methyl-pent-3-enyl)-chroma
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17

Arnold, AP, KJ Cavell, AJ Edwards, BF Hoskins, and EJ Peacock. "Preparation and X-Ray Crystal-Structure of 4,4'-Triselenobis(pent-3-en-2-one)." Australian Journal of Chemistry 41, no. 10 (1988): 1601. http://dx.doi.org/10.1071/ch9881601.

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The title compound was prepared by the reaction of sodium hydrogen selenide with 4-chloropent-3-en-2-one. The compound appears unstable with respect to higher oligomers of the SeC (CH3)CHC(CH3)O ( seacac ) unit. X-ray crystallography reveals the unusual structure in which a central 'complexed' selenium atom is coordinated to the two selenium atoms of the seacac ligands which are in their normal cis conformations. The oxygen atoms are uncoordinated and as far removed from the coordination environment of the central selenium atom as possible. Crystals of Se( seacac )2 are orthorhombic with space
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18

Ushakov, Ivan E., Ivan S. Odin, Pavel A. Gloukhov, Alexander A. Golovanov, Pavel V. Dorovatovskii, and Anna V. Vologzhanina. "Crystal structures of (E)-5-(4-methylphenyl)-1-(pyridin-2-yl)pent-2-en-4-yn-1-one and [3,4-bis(phenylethynyl)cyclobutane-1,2-diyl]bis(pyridin-2-ylmethanone)." Acta Crystallographica Section E Crystallographic Communications 76, no. 2 (2020): 192–96. http://dx.doi.org/10.1107/s2056989020000055.

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Recrystallization of (E)-5-phenyl-1-(pyridin-2-yl)pent-2-en-4-yn-1-one at room temperature from ethylene glycol in daylight afforded [3,4-bis(phenylethynyl)cyclobutane-1,2-diyl)bis(pyridin-2-ylmethanone], C32H22N2O2 (3), while (E)-5-(4-methylphenyl)-1-(pyridin-2-yl)pent-2-en-4-yn-1-one, C17H13NO (2), remained photoinert. This is the first experimental evidence that pentenynones can be photoreactive when fixed in nearly coplanar parallel positions. During the photoreaction, the bond lengths and angles along the pentenyne chain changed significantly, while the disposition of the pyridyl ring tow
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19

Scognamiglio, J., C. S. Letizia, and A. M. Api. "Fragrance material review on 3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)pent-3-en-2-one." Food and Chemical Toxicology 62 (December 2013): S90—S94. http://dx.doi.org/10.1016/j.fct.2013.08.062.

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20

Zou, Juan, Chen-Liang Zhao, Qi-Long Zhang, Lu-Tai Pan, and Kang He. "Crystal structure of (E)-4-hydroxy-3-((5-phenyl-1,3,4-oxadiazol-2-yl)thio)pent-3-en-2-one, C13H12N2O3S." Zeitschrift für Kristallographie - New Crystal Structures 235, no. 3 (2020): 745–46. http://dx.doi.org/10.1515/ncrs-2019-0940.

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21

Feng, Yanhua, Xianhong Yin, Lin Chen, Minyu Tan, and Kaibei Yu. "(Z)-4-(4-{4-[(Z)-1-Methyl-3-oxobut-1-enylamino]phenoxy}phenylamino)pent-3-en-2-one." Acta Crystallographica Section E Structure Reports Online 58, no. 10 (2002): o1154—o1156. http://dx.doi.org/10.1107/s1600536802017336.

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22

Arisawa, Mitsuhiro, Yasuhiro Torisawa, and Masako Nakagawa. "Practical Synthesis of (E)-Pent-3-en-2-one and Its Conversion to (E)-2-Triethylsilyloxypenta-1,3-diene." Synthesis 1995, no. 11 (1995): 1371–72. http://dx.doi.org/10.1055/s-1995-4115.

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23

Scognamiglio, J., C. S. Letizia, and A. M. Api. "Fragrance material review on 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)pent-1-en-3-one." Food and Chemical Toxicology 62 (December 2013): S115—S119. http://dx.doi.org/10.1016/j.fct.2013.08.057.

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24

Jeeva, P., D. Barathi, K. Prabakaran, M. Seenivasa Perumal, Ahmet Atac, and Etem Kose. "Crystal Structure, Experimental and DFT of (Z)-4-((4-Fluorophenyl)amino)pent-3-en-2-one." Asian Journal of Chemistry 33, no. 7 (2021): 1638–44. http://dx.doi.org/10.14233/ajchem.2021.23259.

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Single crystals of a organic compound, (Z)-4-((4-fluorophenyl)amino)pent-3-en-2-one (4FPA) were grown by the slow evaporation technique and characterized by X-ray diffraction and FT-IR spectra. The normal mode frequencies, intensities and the corresponding vibrational assignments were calculated using the GAUSSIAN 09W set of quantum chemistry codes at the DFT/B3LYP levels of theory using the 6-31+G(d,p) basis set. The Fourier transform infrared spectrum was obtained for the title molecule at room temperature. Reactivity features were determined based on global descriptors, electron density map
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25

Bałczewski, Piotr, and Marian Mikołajczyk. "Notizen: Synthesis and Silica Gel Promoted Rearrangement of 5-Methylthio-3-carbo-t-butoxy-pent-3-en-2-one." Zeitschrift für Naturforschung B 44, no. 1 (1989): 99–101. http://dx.doi.org/10.1515/znb-1989-0123.

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The title compound 3 obtained by the Knoevenagel condensation of t-butyl acetoacetate (1) with methylthioethanal (2) in the presence of zinc chloride was found to undergo an easy isomerization on silica gel to its β,γ-isomer which exists as a mixture of the keto (4) and enol (5) forms.
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26

Xiao, Yingcong. "The crystal structure of (3Z,3′Z)-4,4′-((1,4-phenylenebis(methylene))bis(azanediyl))bis(pent-3-en-2-one), C18H24N2O2." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 4 (2021): 757–58. http://dx.doi.org/10.1515/ncrs-2021-0066.

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Abstract C18H24N2O2, triclinic, P 1 ‾ $‾{1}$ (no. 2), a = 6.088(10) Å, b = 8.911(14) Å, c = 16.44(3) Å, α = 81.772(17)°, β = 84.683(18)°, γ = 76.045(17)°, V = 855(2) Å3, Z = 4, R gt (F) = 0.0511, wR ref(F 2) = 0.1858, T = 293 K.
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27

ARISAWA, M., Y. TORISAWA, and M. NAKAGAWA. "ChemInform Abstract: Practical Synthesis of (E)-Pent-3-en-2-one and Its Conversion to (E)-2- Triethylsilyloxypenta-1,3-diene." ChemInform 27, no. 10 (2010): no. http://dx.doi.org/10.1002/chin.199610126.

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28

Ravikumar, K., B. Sridhar, K. S. Kiran Kumar Reddy, G. Sabitha, and J. S. Yadav. "(2S)-2-Benzyl-1-[(4R)-4-benzyl-2,2-dimethyl-1,3-oxazolan-3-yl]pent-4-en-1-one." Acta Crystallographica Section E Structure Reports Online 62, no. 10 (2006): o4755—o4757. http://dx.doi.org/10.1107/s1600536806039389.

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29

Huma, Rahila, Tariq Mahmud, Liviu Mitu, et al. "Synthesis, Characterization, Molecular Docking and Enzyme Inhibition Studies of Some Novel Enaminone Derivatives and Their Complexes with Cu(II), Cd(II) and Co(II) Ions." Revista de Chimie 70, no. 10 (2019): 3564–69. http://dx.doi.org/10.37358/rc.19.10.7597.

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Two new enaminone ligands, 3-chloro-4-{(4-chlorophenyl)amino}pent-3-en-2-one (Ac-PCA), 4-(benzylamino)-3-chloropent-3-en-2-one (Ac-BA) and their metal complexes with transition metal ions [Cu(II), Cd(II) and Co(II)] were prepared and subsequently characterized by FTIR, ICP-AES, UV-Vis, TGA, 1H NMR, 13C NMR and FAB-MS. These newly synthesized compounds were further investigated for anti-acetylcholinesterase (AChE) and anti-urease activities. The (Ac-BA)Cu(II) complex exhibited good anti-AChE while (Ac-BA)2Co(II) complex was potent against anti-urease activities. Other ligands and complexes show
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30

Huma, Rahila, Tariq Mahmud, Nazeran Idrees, Muhammad Jawwad Saif, Rubina Munir, and Nosheen Akbar. "Crystal Structure and Quantum Chemical Studies of a Novel Push–Pull Enaminone: 3-Chloro-4-((4-bromophenyl)amino)pent-3-en-2-one." Journal of Chemical Crystallography 50, no. 3 (2019): 187–97. http://dx.doi.org/10.1007/s10870-019-00786-5.

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31

Sedaghat, Tahereh, Mohamad Naseh, Giuseppe Bruno, Hadi Amiri Rudbari, and Hossein Motamedi. "Synthesis, spectral and structural investigations, theoretical studies, and antibacterial activity of 4-(2-hydroxynaphthalen-3-ylamino)pent-3-en-2-one and its diphenyltin(IV) complex." Journal of Coordination Chemistry 65, no. 10 (2012): 1712–23. http://dx.doi.org/10.1080/00958972.2012.680021.

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32

Daher, Sawsan, and Fazil O. Gülaçar. "Identification of New Aromatic Compounds in the New Zealand Manuka Honey by Gas Chromatography-Mass Spectrometry." E-Journal of Chemistry 7, s1 (2010): S7—S14. http://dx.doi.org/10.1155/2010/472769.

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Analysis of aromatic compounds in the New Zealand manuka honey was carried out by solid phase microextraction followed by gas chromatography-mass spectrometry. A total of 38 compounds were detected. Seven of them such as; 1,4-bis(x-methoxyphenyl)-but-2-en-1-one, 1,5-bis(x-methoxyphenyl)-pent-3-en-1-one, 1,4-bis(x-methoxyphenyl)-1-pentanone, 1,6-bis(x-methoxyphenyl)-3-heptene, 1,6-bis(x-methoxyphenyl)-hex-2(3 or 4)-en-1-one and 2(3, 4 or 5)-hydroxy-1,6-bis(x-methoxyphenyl)-1-hexanone, had never before been identified as natural products. Their structures were deduced from the mass spectral data
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33

Tomiyama, Kenichi, Kazutoshi Sakurai, Yoshihiro Yaguchi, and Yukihiro Kawakami. "Odor-Active Components of Luo Han Guo (Siraitia grosvenorii)." Natural Product Communications 11, no. 8 (2016): 1934578X1601100. http://dx.doi.org/10.1177/1934578x1601100837.

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The volatile components of the dried fruit of Luo Han Guo ( Siraitia grosvenorii Swingle) belonging to the family Cucurbitaceae were analyzed by AROMASCOPE® technique using MonoTrap® DCC18 as an absorbent. A total of 124 volatile components were identified from the headspace aroma solvent extract. The major components were ethanol, butan-l-ol, pentanal, 2-methylbutanal, hexanal, furfural, pent-3-en-2-one, acetic acid, propionic acid, 3-methylbutanoic acid, hexadecanoic acid, and so on. Among them, acetic acid, 3-methylbutanoic acid, and 3-hydroxy-4,5-dimethylfuran-2(5 H)-one (sotolon) strongly
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34

Fahid, Farzaneh, Ayoub Kanaani, Seied Ali Pourmousavi, and Davood Ajloo. "Synthesis, tautomeric stability, spectroscopy and computational study of a potential molecular switch of (Z)-4-(phenylamino)pent-3-en-2-one." Molecular Physics 115, no. 7 (2017): 795–808. http://dx.doi.org/10.1080/00268976.2017.1287439.

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35

Laasri, Laila, and Meryem Hadidi. "Eco-friendly procedure for the synthesis of 4-(Phenylamino)pent-3-en-2-one using an heterogeneous catalyst – ZnCl2/Natural phosphate." Materials Today: Proceedings 45 (2021): 7352–58. http://dx.doi.org/10.1016/j.matpr.2021.01.018.

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36

Imgartinger, H., Τ. Oeser, and J. Dabrowski. "Crystal structure of 3-(3-oxo-3-naphthyl-propenylamino)-1-naphthyIprop- 2-en-l-one, C26H19NO2 and of 1-{(4,4-dimethyl)3-oxopent-1-enylamino}-4,4-dimethyl-pent-1-en-3-one, C14H23NO2, two bisacylvinylamines with bifurcated hydrogen bonding." Zeitschrift für Kristallographie - New Crystal Structures 216, no. 1-4 (2001): 126–28. http://dx.doi.org/10.1524/ncrs.2001.216.14.126.

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37

Piggott, Matthew J., and Dieter Wege. "The Synthesis of 5-Hydroxy-3-methylnaphtho[2,3-c]furan-4,9-dione and 5,8-Dihydroxy-1-methylnaphtho[2,3-c]furan-4,9-dione." Australian Journal of Chemistry 56, no. 7 (2003): 691. http://dx.doi.org/10.1071/ch02253.

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5-Hydroxy-3-methylnaphtho[2,3-c]furan-4,9-dione (1), a metabolite isolated from Aloe ferox and Bulbine capitata, has been synthesized by a sequence involving an annulation reaction between the anion of 4-methoxy-3-oxo-1,3-dihydroisobenzofuran-1-carbonitrile (8) and (E)-pent-3-en-2-one, followed by subsequent construction of the furan ring through allylic bromination, hydrolysis, and dehydration as the key steps. The formation of several unusual products observed in annulation reactions between (8) and O-protected derivatives of (E)-5-hydroxypent-3-en-2-one (9) can be rationalized by invoking t
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38

Suarna, Cacang, Roger T. Dean та Peter T. Southwell-Keely. "Synthesis of α-Tocopherol Analogues". Australian Journal of Chemistry 50, № 12 (1997): 1129. http://dx.doi.org/10.1071/c97044.

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A range of a-tocopherol analogues of varying side-chain length and structure has been prepared by the Wittig reaction of alkyltriphenylphosphonium bromides with either 6-benzyloxy-2,5,7,8-tetramethylchroman- 2-carbaldehyde (8) or 6-acetoxy-2,5,7,8-tetramethylchroman-2-carbaldehyde (14). These analogues include 2-hexyl-2,5,7,8-tetramethylchroman-6-ol (11), 2-heptyl-2,5,7,8-tetramethylchroman-6-ol (12) and 2,5,7,8-tetramethyl-2-(pent-1-enyl)chroman-6-ol (15). Methoxycarbonylmethyl 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylate (2) was formed by reaction of the triethylammonium salt of trolox
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39

Zhang, Yao, Jie Li, Guoyu Ren, Baofu Qin, and Haixia Ma. "Synthesis, crystal structure and antifungal activity of a divalent cobalt(II) complex with uniconazole." Acta Crystallographica Section C Structural Chemistry 72, no. 6 (2016): 485–90. http://dx.doi.org/10.1107/s2053229616007750.

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Azole compounds have attracted commercial interest due to their high bactericidal and plant-growth-regulating activities. Uniconazole [or 1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol] is a highly active 1,2,4-triazole fungicide and plant-growth regulator with low toxicity. The pharmacological and toxicological properties of many drugs are modified by the formation of their metal complexes. Therefore, there is much interest in exploiting the coordination chemistry of triazole pesticides and their potential application in agriculture. However, reports of complexes of u
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40

Komala, Ismiarni, Supandi Supandi, Nurmeilis Nurmeilis, et al. "Microwave-Assisted Claisen-Schmidt Condensation Reaction of Ethyl p-methoxycinnamate to Synthesize p-Methoxystyryl Ketone Derivatives and Evaluate Anti-inflammatory Activity of Synthetic Products." Journal of Mathematical and Fundamental Sciences 53, no. 1 (2021): 86–96. http://dx.doi.org/10.5614/j.math.fund.sci.2021.53.1.6.

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The rhizome of Kaempferia galanga has been known to contain ethyl p-methoxycinnamate (EPMC) (1) as a main component, which has anti-inflammatory properties. Previously we have reported the structural modification of EPMC (1) to form another ester, nitrostyrene, and cinnammamide derivatives and then studied their structure-activity relationships as anti-inflammatory agent. In continuing our research, in this paper, we report the microwave-assisted Claisen-Schmidt condensation of EPMC (1) to synthesize a series of p-methoxystyryl ketones followed by a study of their anti-inflammatory activity. T
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Komala, Ismiarni, Supandi Supandi, Nurmeilis Nurmeilis, et al. "Microwave-Assisted Claisen-Schmidt Condensation Reaction of Ethyl p-methoxycinnamate to Synthesize p-Methoxystyryl Ketone Derivatives and Evaluate Anti-inflammatory Activity of Synthetic Products." Journal of Mathematical and Fundamental Sciences 53, no. 1 (2021): 86–96. http://dx.doi.org/10.5614/j.fund.math.sci.2021.53.1.6.

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The rhizome of Kaempferia galanga has been known to contain ethyl p-methoxycinnamate (EPMC) (1) as a main component, which has anti-inflammatory properties. Previously we have reported the structural modification of EPMC (1) to form another ester, nitrostyrene, and cinnammamide derivatives and then studied their structure-activity relationships as anti-inflammatory agent. In continuing our research, in this paper, we report the microwave-assisted Claisen-Schmidt condensation of EPMC (1) to synthesize a series of p-methoxystyryl ketones followed by a study of their anti-inflammatory activity. T
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Silva, Mark Carvalho da, Maricelia Lopes dos Anjos, Luana Cardoso de Oliveira та ін. "Bioreduction of α,β-unsaturated carbonyl compounds by Lasiodiplodia pseudotheobromae, endophytic fungus from Morinda citrifolia (RUBIACEAE)". Research, Society and Development 9, № 10 (2020): e9739109419. http://dx.doi.org/10.33448/rsd-v9i10.9419.

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Biotransformations are reactions carried out by microorganisms that lead to changes in the structures of organic compounds, among the biotransformations there are bioreductions. Bioreductions are of great interest to the pharmaceutical and food industries, as they almost always lead to the formation of enantiomerically pure compounds. Thus, this work aimed to verify the ability of the fungus Lasiodiplodia pseudotheobromae in bioreduce α,β-unsaturated carbonyl compounds. Compounds (3E)-4-(2-methoxy-phenyl)-but-3-en-2-one (1), (1E, 4E)-1,5-diphenyl-pent-1,4-dien-3-one (2) and (1E, 4E)-1,5-bis-(2
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43

Erfle, Silke, Sebastian Reimann, Alina Bunescu, Zharylkasyn A. Abilov, Anke Spannenberg, and Peter Langer. "Regioselective Synthesis of 6-[Chloro(difluoro)methyl]salicylates by [3+3] Cyclocondensations of 1,3-Bis(trimethylsilyloxy)buta-1,3-dienes with 1-Chloro-1,1-difluoro-4-(trimethylsilyloxy)pent-3-en-2-one." Helvetica Chimica Acta 95, no. 6 (2012): 1037–47. http://dx.doi.org/10.1002/hlca.201100494.

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44

Xi, Teng, Jie Li, Biao Yan, Mingyan Yang, Jirong Song, and Haixia Ma. "A new CoIIcomplex of diniconazole: synthesis, crystal structure and antifungal activity." Acta Crystallographica Section C Structural Chemistry 71, no. 10 (2015): 889–93. http://dx.doi.org/10.1107/s2053229615016241.

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A new CoIIcomplex of diniconazole, namely diaqua[(E)-(RS)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl-κN4)pent-1-en-3-ol]cobalt(II) dinitrate dihydrate, [Co(C15H17Cl2N3O)3(H2O)2](NO3)2·2H2O, was synthesized and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Crystal structural analysis shows that the centrosymmetric CoIIcation is coordinated by four diniconazole ligands and two water molecules, forming a six-coordinated octahedral structure. There are also two free nitrate counter-anions and two additional solvent water molecules in t
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45

MacNeil, Connor S., Kevin R. D. Johnson, Paul G. Hayes та René T. Boeré. "Crystal structure of a dimeric β-diketiminate magnesium complex". Acta Crystallographica Section E Crystallographic Communications 72, № 12 (2016): 1754–56. http://dx.doi.org/10.1107/s2056989016017394.

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The solid-state structure of a dimeric β-diketiminate magnesium(II) complex is discussed. The compound, di-μ-iodido-bis[({4-amino-1,5-bis[2,6-bis(propan-2-yl)phenyl]pent-3-en-2-ylidene}azanido-κ2N,N′)magnesium(II)] toluene sesquisolvate, [Mg2(C29H41N2)2I2]·1.5C7H8, crystallizes as two independent molecules, each with 2/mcrystallographic site symmetry, located at Wyckoff sites 2cand 2d. These have symmetry-equivalent magnesium atoms bridged by μ-iodide ligands with very similar Mg—I distances. The two Mg atoms are located slightly below (∼0.5 Å) the least-squares plane defined by N–C—C–N atoms
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Erfle, Silke, Sebastian Reimann, Alina Bunescu, Zharylkasyn A. Abilov, Anke Spannenberg, and Peter Langer. "ChemInform Abstract: Regioselective Synthesis of 6-[Chloro(difluoro)methyl]salicylates by [3 + 3] Cyclocondensations of 1,3-Bis(trimethylsilyloxy)buta-1,3-dienes with 1-Chloro-1,1-difluoro-4-(trimethylsilyloxy)pent-3-en-2-one." ChemInform 43, no. 41 (2012): no. http://dx.doi.org/10.1002/chin.201241081.

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47

Rob, Md Mahfuzur, Arihiro Iwasaki, Ryota Suzuki, Kiyotake Suenaga, and Hisashi Kato-Noguchi. "Garcienone, a Novel Compound Involved in Allelopathic Activity of Garcinia Xanthochymus Hook." Plants 8, no. 9 (2019): 301. http://dx.doi.org/10.3390/plants8090301.

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Plants are sources of diversified allelopathic substances that can be investigated for use in eco-friendly and efficient herbicides. An aqueous methanol extract from the leaves of Garcinia xanthochymus exhibited strong inhibitory activity against barnyard grass (Echinochloa crus-galli (L.) P. Beauv.), foxtail fescue (Vulpia myuros (L.) C.C.), alfalfa (Medicago sativa L.), and cress (Lepidium sativum L.), and appears to be a promising source of allelopathic substances. Hence, bio-activity guided purification of the extract through a series of column chromatography steps yielded a novel compound
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Truong, Khai-Nghi, Carina Merkens, and Ulli Englert. "3-(Pyridin-4-yl)acetylacetone: CdII and HgII compete for nitrogen coordination." Acta Crystallographica Section C Structural Chemistry 73, no. 9 (2017): 724–30. http://dx.doi.org/10.1107/s2053229617011408.

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3-(Pyridin-4-yl)acetylacetone (HacacPy) acts as a pyridine-type ligand towards CdII and HgII halides. With CdBr2, the one-dimensional polymer [Cd(μ-Br)2(HacacPy)Cd(μ-Br)2(HacacPy)2]∞ is obtained in which five- and six-coordinated CdII cations alternate in the chain direction. Reaction of HacacPy with HgBr2 results in [Hg(μ-Br)Br(HacacPy)]∞, a polymer in which each HgII centre is tetracoordinated. In both compounds, each metal(II) cation is N-coordinated by at least one HacacPy ligand. Equimolar reaction between these CdII and HgII derivatives, either conducted in ethanol as solvent or via grin
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Garcia-Deibe, Ana, Antonio Sousa, Manuel R. Bermejo, et al. "The visible light induced rearrangement of a manganese(III) complex of an unsymmetrical tetradentate Schiff's base ligand, 4-[2-(2-hydroxyphenylmethyleneamino)ethylamino]pent-3-en-2-one, to a manganese(III) complex of the symmetrical ligand salen." Journal of the Chemical Society, Chemical Communications, no. 10 (1991): 728. http://dx.doi.org/10.1039/c39910000728.

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50

Cuviello, Flavia, Faustino Bisaccia, Domenico Spinelli, et al. "The P-glycoprotein inhibitor diltiazem-like 8-(4-chlorophenyl)-5-methyl-8-[(2Z)-pent-2-en-1-yloxy]-8H-[1,2,4]oxadiazolo[3,4-c][1,4]thiazin-3-one inhibits esterase activity and H3 histone acetylation." European Journal of Medicinal Chemistry 164 (February 2019): 1–7. http://dx.doi.org/10.1016/j.ejmech.2018.12.037.

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