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Selective synthesis of germasila-adamantanes through germanium-silicon shift processes.

ABSTRACT: The regioselective synthesis of germasila-adamantanes with the germanium atoms in the bridgehead positions is described starting from cyclic precursors by a cationic sila-Wagner-Meerwein (SWM) rearrangement reaction. The SWM rearrangement allows also a deliberate shift of germanium atoms from the periphery and within the cage structures into the bridgehead positions. This opens the possibility for a synthesis of germasila-adamantanes of defined germanium content and controlled regiochemistry. In the same way that sila-adamantane can be regarded as a molecular building block of elemental silicon, the germasila-adamantane molecules represent cutouts of silicon/germanium alloys.

SUBMITTER: Kuhn S

PROVIDER: S-EPMC10445437 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Selective synthesis of germasila-adamantanes through germanium-silicon shift processes.

Kühn Steffen S Köstler Benedikt B True Celine C Albers Lena L Wagner Matthias M Müller Thomas T Marschner Christoph C

Chemical science 20230731 33

The regioselective synthesis of germasila-adamantanes with the germanium atoms in the bridgehead positions is described starting from cyclic precursors by a cationic sila-Wagner-Meerwein (SWM) rearrangement reaction. The SWM rearrangement allows also a deliberate shift of germanium atoms from the periphery and within the cage structures into the bridgehead positions. This opens the possibility for a synthesis of germasila-adamantanes of defined germanium content and controlled regiochemistry. In ...[more]

PMID: 37621423

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