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Synthesis of an ansa-zirconocene via a novel S<sub>4</sub>-symmetric spirobis(silastannaindacene) compound

Synthesis of an ansa-zirconocene via a novel S4-symmetric spirobis(silastannaindacene) compound

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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. 37(16), pp. 2268-2270. ISSN 1433-7851. eISSN 1521-3773

@article{Huttenhofer1998Synth-23887, title={Synthesis of an ansa-zirconocene via a novel S4-symmetric spirobis(silastannaindacene) compound}, year={1998}, doi={10.1002/(SICI)1521-3773(19980904)37:16<2268::AID-ANIE2268>3.0.CO;2-Y}, 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} }

eng Hüttenhofer, Mario Hüttenhofer, Mario Angewandte Chemie International Edition ; 37 (1998), 16. - S. 2268-2270 Brintzinger, Hans-Herbert Schaper, Frank deposit-license Brintzinger, Hans-Herbert A stereoselective reaction of Sn(NMe<sub>2</sub>)<sub>4</sub> with the silyl-bridged bis(cyclopentadienyl) derivative 1 generates the novel spiro compound 2, in which two C<sub>2</sub>-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 ZrCl<sub>4</sub> affords, by stereoselective Sn/Zr exchange, exclusively the C<sub>2</sub>-symmetric isomer of the ansa-zirconocene rac-3. 1998 Synthesis of an ansa-zirconocene via a novel S<sub>4</sub>-symmetric spirobis(silastannaindacene) compound 2013-07-31T07:25:37Z Schaper, Frank 2013-07-31T07:25:37Z

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