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34 Newest Publications about the topic solution

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Solution phase synthesis of short oligoribonucleotides on a precipitative tetrapodal support

29-09-2014 | Alejandro Gimenez Molina, Amit M. Jabgunde, Pasi Virta and Harri Lönnberg, Beilstein Journal of Organic Chemistry, 2014

Abstract An effective method for the synthesis of short oligoribonucleotides in solution has been elaborated. Novel 2'-O-(2-cyanoethyl)-5'-O-(1-methoxy-1-methylethyl) protected ribonucleoside 3'-phosphoramidites have been prepared and their usefulness as building blocks in RNA synthesis on a ...

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Topochemical control of the photodimerization of aromatic compounds by γ-cyclodextrin thioethers in aqueous solution

12-09-2013 | Hai Ming Wang and Gerhard Wenz, Beilstein Journal of Organic Chemistry, 2013

Abstract The formation of soluble 1:2 complexes within hydrophilic γ-cyclodextrin (γ-CD) thioethers allows to perform photodimerizations of aromatic guests under controlled, homogenous reaction conditions. The quantum yields for unsubstituted anthracene, acenaphthylene, and coumarin complexed ...

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Ethyl diazoacetate synthesis in flow

05-09-2013 | Mariëlle M. E. Delville, Jan C. M. van Hest and Floris P. J. T. Rutjes, Beilstein Journal of Organic Chemistry, 2013

Abstract Ethyl diazoacetate is a versatile compound in organic chemistry and frequently used on lab scale. Its highly explosive nature, however, severely limits its use in industrial processes. The in-line coupling of microreactor synthesis and separation technology enables the synthesis of ...

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Controlled synthesis of poly(3-hexylthiophene) in continuous flow

25-07-2013 | Helga Seyler, Jegadesan Subbiah, David J. Jones, Andrew B. Holmes and Wallace W. H. Wong, Beilstein Journal of Organic Chemistry, 2013

Abstract There is an increasing demand for organic semiconducting materials with the emergence of organic electronic devices. In particular, large-area devices such as organic thin-film photovoltaics will require significant quantities of materials for device optimization, lifetime testing and ...

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Dipolar addition to cyclic vinyl sulfones leading to dual conformation tricycles

15-07-2013 | Steven S. Y. Wong, Michael G. Brant, Christopher Barr, Allen G. Oliver and Jeremy E. Wulff, Beilstein Journal of Organic Chemistry, 2013

Abstract Dipolar addition of cyclic azomethine imines with cyclic vinyl sulfones gave rise to functionalized tricycles that exhibited fluxional behavior in solution at room temperature. The scope of the synthetic methodology was explored, and the origin of the fluxional behavior was probed by ...

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A3-Coupling catalyzed by robust Au nanoparticles covalently bonded to HS-functionalized cellulose nanocrystalline films

10-07-2013 | Jian-Lin Huang, Derek G. Gray and Chao-Jun Li, Beilstein Journal of Organic Chemistry, 2013

Abstract We decorated HS-functionalized cellulose nanocrystallite (CNC) films with monodisperse Au nanoparticles (AuNPs) to form a novel nanocomposite catalyst AuNPs@HS-CNC. The uniform, fine AuNPs were made by the reduction of HAuCl4 solution with thiol (HS-) group-functionalized CNC films. ...

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Simple and rapid hydrogenation of p-nitrophenol with aqueous formic acid in catalytic flow reactors

14-06-2013 | Rahat Javaid, Shin-ichiro Kawasaki, Akira Suzuki and Toshishige M. Suzuki, Beilstein Journal of Organic Chemistry, 2013

Abstract The inner surface of a metallic tube (i.d. 0.5 mm) was coated with a palladium (Pd)-based thin metallic layer by flow electroless plating. Simultaneous plating of Pd and silver (Ag) from their electroless-plating solution produced a mixed distributed bimetallic layer. Preferential acid ...

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Spectroscopic characterization of photoaccumulated radical anions: a litmus test to evaluate the efficiency of photoinduced electron transfer (PET) processes

24-04-2013 | Maurizio Fagnoni, Stefano Protti, Davide Ravelli and Angelo Albini, Beilstein Journal of Organic Chemistry, 2013

Abstract Steady-state irradiation in neat acetonitrile of some aromatic nitriles, imides and esters (10−5–10−3 M solution) in the presence of tertiary amines allowed the accumulation of the corresponding radical anions, up to quantitative yield for polysubstituted benzenes and partially with ...

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Ring opening of 2-aza-3-borabicyclo[2.2.0]hex-5-ene, the Dewar form of 1,2-dihydro-1,2-azaborine: stepwise versus concerted mechanisms

18-04-2013 | Holger F. Bettinger and Otto Hauler, Beilstein Journal of Organic Chemistry, 2013

Abstract The ring opening of the Dewar form of 1,2-dihydro-1,2-azaborine, 2-aza-3-borabicyclo[2.2.0]hex-5-ene (3) is investigated by theoretical methods by using multiconfiguration SCF (CASSCF) and coupled cluster theory [CCSD(T)] with basis sets up to polarised quadruple-zeta quality. The ...

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From bead to flask: Synthesis of a complex β-amido-amide for probe-development studies

06-02-2013 | Kevin S. Martin, Cristian Soldi, Kellan N. Candee, Hiromi I. Wettersten, Robert H. Weiss and Jared T. Shaw, Beilstein Journal of Organic Chemistry, 2013

Abstract A concise synthesis of benzimidazole-substituted β-amido-amide LLW62 is presented. The original synthesis of compounds related to LLW62 was developed on Rink resin as part of a “one-bead, one-compound” combinatorial approach for on-bead screening purposes. The current synthesis is ...

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