Zobrazeno 1 - 10
of 23
pro vyhledávání: '"M. Freckmann"'
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 634:2199-2208
PrCl3, NdCl3, SmCl3, ErCl3, and LuCl3 react with three mole equivalents of [Li(tmeda)][CHPhSiMe3] (1), [Li(tmeda)][CHPhSiMe2tBu] (2), [Li(tmeda)][CHPhSiMe2Ph] (3), and [Li(tmeda)][CH(C6H3Me2-3,5)SiMe2tBu] (4) forming the ate complexes [Li(tmeda)2][Ln
Autor:
Donald A. Watson, Stephen L. Buchwald, Joseph R. Martinelli, Dominique M. M. Freckmann, Timothy E. Barder
Publikováno v:
The Journal of Organic Chemistry. 73:7102-7107
A method for the Pd-catalyzed carbonylation of aryl bromides has been developed using Xantphos as the ligand. This method is effective for the direct synthesis of Weinreb amides, primary and secondary benzamides, and methyl esters from the correspond
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 634:1334-1338
The reactions of PhCH2SiMe3 (1), PhCH2SiMe2tBu (2), PhCH2SiMe2Ph (3), 3,5-Me2C6H3CH2SiMe3 (4), and 3,5-Me2C6H3CH2SiMe2tBu (5) with nBuLi in tetramethylethylenediamine (tmeda) afford the corresponding lithium complexes [Li(tmeda)][CHRSiMe2R′] (R, R
Publikováno v:
Organometallics. 25:2696-2699
The reaction of LuCl3(THF)3 with 2 equiv of LiCH2SiMe3 and 1 equiv of KCHPh2 (1) affords Lu(CH2SiMe3)2(CHPh2)(THF)2 (2). X-ray structural analyses show the benzhydryl unit to be planar in 1, but bent in 2.
Autor:
Herbert Schumann, Konstantin A. Rufanov, Dominique M. M. Freckmann, Heinz-Jürgen Kroth, Stefan Schutte
Publikováno v:
Zeitschrift für Naturforschung B. 60:533-537
Lu(CH2SiMe3)3(THF)2 (2) decomposes slowly at room temperature with formation of Me4Si. In order to understand the mechanism of this elimination process, Lu(CH2SiMe3)3([D8]-THF)2 (1), Lu(CH2SiMe3)3(THF)(DME) (3), and Lu(CH2SiMe3)3(THF)(diglyme) (4) we
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 628:2422-2426
SmCl3 reacts with Me3SiCH2Li in THF yielding Sm(CH2SiMe3)3(THF)3 (1). The single crystal X-ray structural analyses of 1, Er(CH2SiMe3)3(THF)2 (2), Yb(CH2SiMe3)3(THF)2 (3), and Lu(CH2SiMe3)3(THF)2 (4) show the Sm atom in a fac-octahedral coordination a
Publikováno v:
Chemical Reviews. 102:1851-1896
Autor:
Dominique M. M. Freckmann, Tiffany Dubé, Sandro Gambarotta, Glenn P. A. Yap, Christian D. Berube
Publikováno v:
Organometallics. 21:1240-1246
The reaction of YbI2(THF)2 with diphenyldipyrrolylmethanide leads to a complex reaction from which an octameric divalent Yb macrocyclic complex, [diphenyldipyrromethanediyl-Yb]8, was obtained as a major product. A tetrameric cyclic Yb(II)-oxo complex
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 626:540-546
The X-ray crystal structures of Hg(C6F4X-p)2 (X = NH2, OMe, or Me) show the compounds to have almost linear C–Hg–C stereochemistry (X = NH2, 176.3(4)°; X = OMe, 179.5(2)°; X = Me, 176.3(2)°), and the two tetrafluoroaryl rings rotated ca. 52–
Autor:
Patrick Theato, Andreas F. M. Kilbinger, E. Bryan Coughlin, Dominique M. M. Freckmann, Anthony (Tony) Idem, Mark W. Ellsworth, Matthew A. DeWit, Ali Nazemi, Solmaz Karamdoust, Annelise Beaton, Elizabeth R. Gillies, Peter J. Roth, S.-k. Ahn, P. Deshmukh, R. M. Kasi, Yoan Simon, Li Guo, Donghui Zhang, Graeme Moad, Massimo Benaglia, Ming Chen, John Chiefari, Yen K. Chong, Daniel J. Keddie, Ezio Rizzardo, San H. Thang, Christine Mangold, Frederik Wurm, John Texter, Vivek Arjunan Vasantha, Kejian Bian, Xiumin Ma, Lisa Slater, Thomas Mourey, Gary Slater