Publikation: Synthesis of an ansa-zirconocene via a novel S4-symmetric spirobis(silastannaindacene) compound
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1998
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Angewandte Chemie International Edition. 1998, 37(16), pp. 2268-2270. ISSN 1433-7851. eISSN 1521-3773. Available under: doi: 10.1002/(SICI)1521-3773(19980904)37:16<2268::AID-ANIE2268>3.0.CO;2-Y
Zusammenfassung
A stereoselective reaction of Sn(NMe2)4 with the silyl-bridged bis(cyclopentadienyl) derivative 1 generates the novel spiro compound 2, in which two C2-symmetric six-membered rings of opposite configuration are joined at a tin center: One ring is R,R-, and the other S,S-configured. Subsequent reaction with two equivalents of ZrCl4 affords, by stereoselective Sn/Zr exchange, exclusively the C2-symmetric isomer of the ansa-zirconocene rac-3.
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540 Chemie
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Metallocenes, spiro compounds, stereoselective synthesis, tin, zirconium
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HÜTTENHOFER, Mario, Frank SCHAPER, Hans-Herbert BRINTZINGER, 1998. Synthesis of an ansa-zirconocene via a novel S4-symmetric spirobis(silastannaindacene) compound. In: Angewandte Chemie International Edition. 1998, 37(16), pp. 2268-2270. ISSN 1433-7851. eISSN 1521-3773. Available under: doi: 10.1002/(SICI)1521-3773(19980904)37:16<2268::AID-ANIE2268>3.0.CO;2-YBibTex
@article{Huttenhofer1998Synth-23887, year={1998}, doi={10.1002/(SICI)1521-3773(19980904)37:16<2268::AID-ANIE2268>3.0.CO;2-Y}, title={Synthesis of an ansa-zirconocene via a novel S<sub>4</sub>-symmetric spirobis(silastannaindacene) compound}, number={16}, volume={37}, issn={1433-7851}, journal={Angewandte Chemie International Edition}, pages={2268--2270}, author={Hüttenhofer, Mario and Schaper, Frank and Brintzinger, Hans-Herbert} }
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