Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Alexander, Himmelspach"'
Autor:
Alexander Himmelspach, Getachew Shibabaw Molla, Roland Wohlgemuth, Erhard T. K. Haupt, Andreas Liese
Publikováno v:
Molecular Catalysis. 445:36-42
Detailed kinetics and mechanistic analyses of glycerol kinase from Cellulomonas sp. with respect to Mg2+ to ATP molar ratio were performed. The enzyme essentially requires Mg2+ for its activity and shows maximum activity at the optimum Mg2+ to ATP mo
Publikováno v:
Organic Process Research & Development. 20:1930-1936
In this study, an efficient and high-yield simultaneous epoxidation and transesterification of fatty acid methyl esters in a single-pot reaction is presented. Starting from commercially available renewable unsaturated fatty acid methyl esters (FAMEs)
Autor:
Andreas Steffen, Philipp T. Hennig, Alexander Himmelspach, Rüdiger Bertermann, Michael Hailmann, Maik Finze, Fabian Keppner, Benjamin Hupp
Publikováno v:
Chemical communications (Cambridge, England). 55(63)
A set of mono- and dinuclear AuI and AgI alkynyl complexes bearing the carba-closo-dodecaboranylethynyl ligand show intense room temperature phosphorescence. The {closo-1-CB11} cage participates in an unprecedented way as an electron donating moiety,
Publikováno v:
Chemical Communications. 52:13241-13244
The [BHF3]− anion represents the first example of an anion of the series [BHnF4−n]− (n = 1–3), which is obtained via deboronation of closo-1,2-C2B10H12 or closo-1,7-C2B10H12 with anhydrous [Me4N]F.
Publikováno v:
Organometallics. 34:462-469
Cesium or tetraethylammonium salts of the doubly negatively charged mercury(II) complexes [Hg(12-I-closo-1-CB11H10)2]2– (1), [Hg(12-HC≡C-closo-1-CB11H10)2]2– (2), [Hg(12-FcC≡C-closo-1-CB11H10)2]2– (3), and [Hg(12-iPr3SiC≡C-closo-1-CB11H10
Autor:
Guido J. Reiss, Jochen Löblein, Alexander Himmelspach, Szymon Z. Konieczka, Michael Hailmann, Maik Finze
Publikováno v:
Inorganic Chemistry. 53:9385-9399
Disubstituted carba-closo-dodecaborate anions with one functional group bonded to the cluster carbon atom and one ethynyl group bonded to the antipodal boron atom were synthesized from easily accessible {closo-1-CB11} clusters. [Et4N][1-NC-12-HC≡C-
Publikováno v:
Chemical communications (Cambridge, England). 52(90)
Deboronation of closo-1,7-C
Autor:
Maik Finze, Carsten Knapp, Tracey L. Roemmele, René T. Boeré, Christoph Bolli, Alexander Himmelspach
Publikováno v:
Chemistry - A European Journal. 19:1784-1795
The range of electrochemical stability of a series of weakly coordinating halogenated (Hal=F, Cl, Br, I) 1-carba-closo-dodecaborate anions, [1-R-CB(11)X(5)Y(6)](-) (R=H, Me; X=H, Hal, Me; Y=Hal), has been established by using quantum chemical calcula
Microwave-Assisted Kumada-Type Cross-Coupling Reactions of Iodinated Carba-closo-dodecaborate Anions
Publikováno v:
Inorganic Chemistry. 51:2679-2688
The microwave-assisted Pd-catalyzed Kumada-type cross-coupling reaction of iodinated carba-closo-dodecaborate anions requires smaller amounts of Grignard reagent and catalyst and results in higher yields in much shorter reaction times in comparison t
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 638:512-519
Salts of the ethynyl-closo-dodecaborate dianion [HC≡C-closo-B12H11]2– (1) were synthesized by a microwave-assisted palladium-catalyzed cross-coupling reaction starting from the iodinated cluster [I-closo-B12H11]2– and Me3SiC≡CMgBr. The dianio