Academic literature on the topic 'Bicyclo [2.1.0] pentane'

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Journal articles on the topic "Bicyclo [2.1.0] pentane"

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Thirumoorthi, Navanita T., and Vikrant A. Adsool. "A practical metal-free homolytic aromatic alkylation protocol for the synthesis of 3-(pyrazin-2-yl)bicyclo[1.1.1]pentane-1-carboxylic acid." Organic & Biomolecular Chemistry 14, no. 40 (2016): 9485–89. http://dx.doi.org/10.1039/c6ob01799a.

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As a part of our ongoing synthetic quest to expand the frontiers of contemporary medicinal chemistry, we now report an expedient synthesis of a potentially useful bicyclo[1.1.1]pentane building block, 3-(pyrazin-2-yl)bicyclo[1.1.1]pentane-1-carboxylic acid. This report also showcases the application of this motif as a “spacer” probe in a biological study.
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Brown, SJ, SKC Kok, PA Lay, and AF Masters. "Electrochemical Behavior of Bis[pentane-2,4-dithionato(1-)]iron(II), Fe(sacsac)2, and Dicarbonylbis[pentane-2,4-dithionato(1-)]iron(II), Fe(sacsac)2(CO)2." Australian Journal of Chemistry 42, no. 11 (1989): 1839. http://dx.doi.org/10.1071/ch9891839.

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The redox behaviours of Fe(sacsac)2 and Fe( sacsac )2(CO)2 in chloroform are reported ( sacsac - = C5H7S2- = dithioacetylacetonate anion = pentane-2,4-dithionate anion). Fe( sacsac )2 is reversibly reduced to [Fe( sacsac )2]-, but no other redox processes are observed within the solvent limits. Fe( sacsac )2(CO)2 undergoes a reversible one-electron reduction followed by rapid loss of carbon monoxide to generate [Fe( sacsac )2]-. The oxidation of Fe( sacsac )2(CO)2 results in the oxidation of a dithioacetylacetonate ligand to the 3,5-dimethyl-1,2-dithiolium cation and the formation of a previou
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Klein, Hans-Friedrich, Goetz Lull, Birgit Rodenhäuser, Gerhard Cordier, and Helmut Paulus. "Monoolefincobalt(0)-Komplexe / Monoolefincobalt(0) Complexes." Zeitschrift für Naturforschung B 43, no. 10 (1988): 1256–62. http://dx.doi.org/10.1515/znb-1988-1008.

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Mononuclear cobalt(o) complexes containing olefin and trimethylphosphane ligands Co(olefin)(PMe3)3 (olefin = C2H4 (1), C3H6 (2), cyclopentene (3), trans-1,2-diphenylethene (4), tetrafluorobenzo-bicyclo-(2.2.2)-octadiene (5)), are obtained from CoCl2 by reaction with magnesium in the presence of the ligands or by substitution of 3 with olefin. X-ray crystal structure determinations of 4 and 5 show a distorted tetrahedral arrangement of ligands around the cobalt atom. Chemical and spectroscopic properties are consistent with a paramagnetic valence state of the compounds in solution. By reaction
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Pörschke, Klaus-Richard, Christian Pluta, Bernd Proft, Frank Lutz, and Carl Krüger. "Bis(di-tert-butylphosphino)ethan-nickel(0)-Komplexe / Bis(di-tert-butylphosphino)ethane-nickel(0) Complexes." Zeitschrift für Naturforschung B 48, no. 5 (1993): 608–26. http://dx.doi.org/10.1515/znb-1993-0511.

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Ni(cdt) reacts with tBu2Bu2PC2H4P4P'Bu2 in pentane at 20°C to yield brownish crystals of (tBu2Bu2PC2H4P4P'Bu2)Ni(η2-C12H18) (1). The molecular structure of 1, as established by X-ray crystallography, exhibits a trigonal-planar coordination geometry of the nickel center with a η2bonded cdt ligand. In the crystal 1 exists as two enantiomers, which are determined by the leftor right-handed screw axis of the cdt ligand. The cdt ligand in 1 resists most typical displacement reactions but 1 reacts with CO at – 78°C to afford the colorless 18e complex (tBu2Bu2PC2H4P4P'Bu2)Ni(CO)2 (2). From the reacti
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Kreiter, Cornelius G., Eduard Michels, and Jürgen Kaub. "Chrom(0)-und Molybdän(0)-Komplexe von 11-Isopropyliden-bicyclo[4.4.1]undeca-2,4,8-trienen / Chromium(0) and Molybdenum(0) Complexes of 11-Isopropylidene-bicyclo[4.4. 1]undeca-2,4,8-trienes." Zeitschrift für Naturforschung B 41, no. 6 (1986): 722–30. http://dx.doi.org/10.1515/znb-1986-0610.

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11-Isopropylidene-bicyclo[4.4.1]undeca-2,4,8-triene (IBU, 1A) and five alkyl substituted de­rivatives (1B-1F) contain a conjugated diene unit and two isolated CC-double bonds, one exocyclic and one incorporated into the bicvclus, each suited for complexation to transition metals. With [Cr(CO)3(CH3CN)3] (2) 1A-1F form [Cr(CO)3(η6-IBU)] complexes (3A−3F). in which the IBU ligands are coordinated to the chromium via the diene unit and the exocyclic CC-double bond. The corresponding [Mo(CO)3(η6-IBU)] complexes (5A−5F) are obtained from the reactions of [Mo(CO)3(diglyme)] (4) with 1A−1F. In additio
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Knoll, Christian, Danny Müller, Marco Seifried, et al. "Cooperativity in spin crossover materials as ligand's responsibility – investigations of the Fe(ii) – 1,3-bis((1H-tetrazol-1-yl)methyl)bicyclo[1.1.1]pentane system." Dalton Transactions 47, no. 16 (2018): 5553–57. http://dx.doi.org/10.1039/c8dt00781k.

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In [Fe(ppditz)<sub>3</sub>]X<sub>2</sub>, X = BF<sub>4</sub><sup>−</sup>, ClO<sub>4</sub><sup>−</sup>, PF<sub>6</sub><sup>−</sup> spin crossover complexes the observed cooperativity originates only from the rigidity and internal strain of the ligand.
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MASH, E. A., T. M. GREGG, and M. A. KACZYNSKI. "ChemInform Abstract: Diastereoselective Manipulations of Bicyclo(m.1.0)alkane Derivatives. Part 2. Nucleophilic Additions to the Carbonyl Carbons of Bicyclo(m.1. 0)alkan-2-ones." ChemInform 27, no. 34 (2010): no. http://dx.doi.org/10.1002/chin.199634091.

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Yang, Ying-Qun, Wei Li, Zhi-Min Chen, and Li-Xia Fu. "Crystal Structure and Properties of a New Copper(II) Complex Cu2(phen)2[C7H8(COO)2]2 (H2O)4:5." Zeitschrift für Naturforschung B 67, no. 9 (2012): 872–76. http://dx.doi.org/10.5560/znb.2012-0097.

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A new complex Cu2(phen)2[C7H8(COO)2]2 (H2O)4:5 (1) has been synthesized, with the dianion of bicyclo[2.2.1] hept-2-ene-5,6-dicarboxylic acid [C7H8(COOH)2] (LH2) and 1,10-phenanthroline (phen) as ligands. In 1, L2- anions link Cu(II) cations to form two binuclear structure units, in which each Cu(II) cation is coordinated by five donor atoms to give a distorted square-pyramidal geometry. The magnetic data of 1 show that it exhibits weak antiferromagnetic properties at low temperature. When the excitation wavelength is at 470 nm, it has an intense photoluminescence. In addition, the cyclovoltamm
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Adcock, James L., and Andrei A. Gakh. "Synthesis of novel cage quaternary salts via nucleophilic substitution of 1,3-diiodobicyclo[1.1.1]pentane. Further evidence for a stable 3-iodo-1-bicyclo[1.1.1]pentyl cation." Tetrahedron Letters 33, no. 34 (1992): 4875–78. http://dx.doi.org/10.1016/s0040-4039(00)61221-2.

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Parvez, Masood, Ted S. Sorensen, and Fang Sun. "Conformational analysis of the bicyclo - [4.4.1]undecan-11-one ring system." Canadian Journal of Chemistry 80, no. 3 (2002): 245–49. http://dx.doi.org/10.1139/v02-022.

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The first conformational analysis of a bicyclo[4.4.1]undecan-11-one system (1) is presented. Based on low-temperature 13C NMR line-broadening measurements and an X-ray structure of the 1,6-dibromo derivative (2), this ketone adopts a chiral conformation with approximate C2 symmetry about an axis containing the &gt;C=0 bond. The observed NMR line-broadening results are consistent with a dynamic interchange of M and P enantiomeric C2 conformations, or expressed another way, the "effective" development of an additional Cs symmetry plane bisecting the molecule at right angles to the plane containi
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Dissertations / Theses on the topic "Bicyclo [2.1.0] pentane"

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LAKODEY, ALINE. "Synthese de systemes bicyclo(5. 1. 0) octeniques fonctionnalises. Thermolyses de systemes 1-carbethoxy bicyclo(5. 1. 0) oct-2-eniques." Université Louis Pasteur (Strasbourg) (1971-2008), 1992. http://www.theses.fr/1992STR13111.

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Ce memoire decrit une nouvelle synthese de systemes bicyclo(5. 1. 0) octeniques fonctionnalises au depart d'esters cycloheptadieniques eux-memes obtenus par cycloaddition (2+2) formelle de propiolate d'ethyle sur des enamines de cyclopentanone et d'indanone suivie d'une ouverture de cycle des cyclobutenes formes et d'une desamination reductive. Ces esters cycloheptadieniques reagissent avec divers diazoalcanes (2-diazo propane, diazomethane) pour conduire aux delta-1 pyrazolines correspondantes dont les traitements thermiques ou photochimiques fournissent les systemes bicyclo(5. 1. 0) octeniqu
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Michaut, Antoine. "Construction et réactivité de dérivés bicyclo [4. 2. 1] et bicyclo [4. 2. 0] : application à la préparation stéréosélective de cyclooctanes fonctionnalisés." Aix-Marseille 3, 2005. http://www.theses.fr/2005AIX30043.

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L'étude porte sur la synthèse de bicyclo[4. 2. 1]nonanes ou de bicyclo[4. 2. 0]octanes à partir de composés 1,3-dicarbonylés. Des β-cétoesters bicycliques sont impliqués dans une séquence domino de cis-[alpha],γ-dialkylation et cyclisés par métathèse. La fragmentation de ces intermédiaires permet de libérer des bicyclo[6. 3. 0] proches du squelette des astériscanolides. Un effet de solvant inattendu a été observé lors de la réduction de dérivés 1,3-dicarbonylés par des hydrures métalliques. En effet le DCM à la place du THF conduit à une réduction contrastérique ou une nette amélioration de la
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Conference papers on the topic "Bicyclo [2.1.0] pentane"

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Brutin, David, and Loune`s Tadrist. "Gravity Influence of Convective Boiling Stability in a Minichannel." In ASME 3rd International Conference on Microchannels and Minichannels. ASMEDC, 2005. http://dx.doi.org/10.1115/icmm2005-75010.

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We previously evidenced the influence of confinement and inlet conditions on convective boiling stability in a minichannel. The experiments were realized based on an upward n-pentane two-phase flow. Here, we present results of convective boiling in a minichannel for several minichannel orientations which can be modified from the horizontal (heating surface on the top) through the vertical (previous situation already studied of upward flow) to the horizontal (heating surface on the bottom). We present the results obtained for the same heat flux provided to the minichannel (QW = 92 kW.m−2), the
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