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| | ONLINE | ISSN | : | 1348-0634 | | PRINT | ISSN | : | 0009-2673 |
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| | Bulletin of the Chemical Society of Japan |
| Vol. 77 (2004) , No. 7 pp.1287-1295 |
| [PDF (183K)] [References]  |  | Please click this button non-subscribers to purchase a paper individually. |
 | Insertion of Phenylacetylene into [Pt(GeMe3)(SnMe3)(PMe2Ph)2]
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| | 1) International Research Center for Elements Science, Institute for Chemical Research, Kyoto University
2) Department of Applied Chemistry, Graduate School of Engineering, Osaka City University |
| (Received February 3, 2004)
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The reaction of Me3GeSnMe3 with a platinum(0) complex, in situ generated from [Pt(cod)2] (cod = 1,5-cyclooctadiene) and 2 molar quantity of PMe2Ph in Et2O, formed a cis–trans mixture of [Pt(GeMe3)(SnMe3)(PMe2Ph)2] (1). Recrystallization of crude 1 from CH2Cl2–pentane gave pure cis-1, while the isolated cis isomer was again converted to an equilibrium mixture (cis:trans = 8:2) in solution. The cis–trans mixture of 1 underwent competitive insertion of phenylacetylene into Pt–Sn and Pt–Ge bonds to give cis-[Pt(GeMe3){C(Ph)=CH(SnMe3)}(PMe2Ph)2] (2a) and cis-[Pt{C(Ph)=CH(GeMe3)}(SnMe3)(PMe2Ph)2] (3a), respectively, in a ratio of 80:20, while 2a was thermodynamically less stable, and converted to 3a in solution. The insertion mechanism was examined by kinetic investigations. |
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| doi:10.1246/bcsj.77.1287 | | JOI JST.JSTAGE/bcsj/77.1287 |
| Copyright (c) 2004 The Chemical Society of Japan |
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