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622 Aktuelle Fachpublikationen zum Thema temperature

mit folgenden Suchkriterien:

ChemInform Abstract: Magnetic Nanoparticles Supported Oxime Palladacycle as a Highly Efficient and Separable Catalyst for Room Temperature Suzuki—Miyaura Coupling Reaction in Aqueous Media.

24.09.2015 | Mohammad Gholinejad, Mehran Razeghi, Carmen Najera, ChemInform, 2015

Abstract A novel magnetic nanoparticle‐supported oxime palladacycle catalyst is successfully prepared and characterized.


ChemInform Abstract: Solvent‐Free Heteropolyacid‐Catalyzed Glycerol Ketalization at Room Temperature.

24.09.2015 | M. J. da Silva, A. A. Julio, F. C. S. Dorigetto, ChemInform, 2015

Abstract Among the tested heteropolyacids H3PW12O40 proves to be the best suited heteropolyacid catalyst for the regioselective ketalization of glycerol to furnish selectively the 1,3‐dioxolan‐4‐methanols (III) in this solvent‐free protocol.


ChemInform Abstract: Temperature Dependence of Turnover in a Sc(OTf)3‐Catalyzed Intramolecular Schmidt Reaction.

24.09.2015 | Charlie Fehl, Erin E. Hirt, Sze‐Wan Li, Jeffrey Aube, ChemInform, 2015

Abstract Starting from azide‐tethered ketones the title reaction is applied to the preparation of amides and lactams.


ChemInform Abstract: Metal‐Free N‐Arylation of Secondary Amides at Room Temperature.

24.09.2015 | Fredrik Tinnis, Elin Stridfeldt, Helena Lundberg, Hans Adolfsson, Berit Olofsson, ChemInform, 2015

Abstract Various tertiary acyclic amides are regiospecifically obtained utilizing the high reactivity of diaryliodinium salts.


ChemInform Abstract: Arene Oxidation with Malonoyl Peroxides.

24.09.2015 | Andrei Dragan, Tomasz M. Kubczyk, Julian H. Rowley, Stephen Sproules, Nicholas C. O. Tomkinson, ChemInform, 2015

Abstract Malonoyl peroxide (II) is found to be an efficient reagent for the oxidation of arenes at room temperature or slightly elevated temperatures to furnish protected phenols.


ChemInform Abstract: Non‐catalytic Solvent‐Free Synthesis of 5,6,7,8‐Tetrahydro‐4H‐chromenes from Aldehydes, Dimedone and Malononitrile at Ambient Temperature.

24.09.2015 | Michail N. Elinson, Fedor V. Ryzhkov, Tatiana A. Zaimovskaya, Mikhail P. Egorov, ChemInform, 2015

Abstract Title compounds are efficiently synthesized by simple grinding as mechanochemical activation.


ChemInform Abstract: Reductions of Aryl Bromides in Water at Room Temperature.

17.09.2015 | James C. Fennewald, Evan B. Landstrom, Bruce H. Lipshutz, ChemInform, 2015

Abstract Surfactant (NOK) generates nanoreactors in water in which the reduction of aryl bromides with NaBH4 proceeds efficiently.


ChemInform Abstract: A New Polyborate Anion, [B7O9(OH)6]3‐: Self Assembly, XRD and Thermal Properties of s‐fac‐[Co(dien)2] [B7O9(OH)6]·9H2O.

17.09.2015 | Mohammed A. Altahan, Michael A. Beckett, Simon J. Coles, Peter N. Horton, ChemInform, 2015

Abstract The new compound s‐fac‐[Co(dien)2] [B7O9(OH)6]·9H2O (dien: HN(CH2CH2NH2)2) is prepared from an aqueous mixture of B(OH)3 and [Co(dien)2][OH]3 (obtained by anion exchange from [Co(dien)2]Cl3) in a ratio of 10:1 (room temperature, 3 h, 35% yield).


ChemInform Abstract: Isolation and Characterization of the [Ga2Al18O8(OH)36 (H2O)12]8+ Cluster: Cationic Variations on the Wells—Dawson Topology.

17.09.2015 | M. Fairley, K. W. Corum, A. Johns, D. K. Unruh, M. Basile, J. de Groot, S. E. Mason, T. Z. Forbes, ChemInform, 2015

Abstract A new heterometallic cluster, [Ga2Al18O8(OH)36 (H2O)12](nds)4·31H2O (nds: 2,7‐naphthalene disulfonate) is synthesized by heating a partially hydrolized aqueous solution of AlCl3 and GaCl3 with a Ga/Al ratio of 1:2 at 80 °C for 24 h in an autoclave followed by addition of Na2(nds) as a ...


ChemInform Abstract: Synthesis of Thioacetal via AgOTf‐Catalyzed Reaction of 2‐Alkynylbenzaldehyde with Thiol.

17.09.2015 | Ran Wu, Shang Gao, Guanghui Yang, Lingling Pan, Ming Liu, Keyong Hu, Weihui Zhong, Chuanming Yu, ChemInform, 2015

Abstract The title reaction affords 2‐alkynylbenzaldehyde thioacetals (III) in good to excellent yields at room temperature in short reaction times.


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