- Contra-thermodynamic Olefin Isomerization by Chain-Walking Hydrofunctionalization and Formal Retro-hydrofunctionalization
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We report a contra-thermodynamic isomerization of internal olefins to terminal olefins driven by redox reactions and formation of Si-F bonds. This process involves chain-walking hydrosilylation of internal olefins and subsequent formal retro-hydrosilylation. The process rests upon the high activities of platinum hydrosilylation catalysts for isomerization of metal alkyl intermediates and a new, metal-free process for the conversion of alkylsilanes to alkenes. By this approach, 1,2-disubstituted and trisubstituted olefins are converted to terminal olefins.
- Hanna, Steven,Butcher, Trevor W.,Hartwig, John F.
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supporting information
p. 7129 - 7133
(2019/09/12)
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- Synthesis and characterization of biophilic siliconorganic compounds
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By biophilic compounds we understand derivatives of sugar or phosphoric acid, starting from mono-, di- or trisilanols with long hydrocarbon chains.Through variation of the lipophilic part (length of the chains, number of the chains) and of the hydrophilic zone (headgroups: OH, OMe, phosphates) the amphiphilic property of our manufactured siliconorganic compounds can be adjusted.With this property, the requirement is given for the formation of vesicles.Beside those diacyloxysilanes already prepared and described by us, new and not yet described siliconorganic compounds could be prepared and characterized.These include the silanols 2a-2c and the methoxy compounds 3a-3c.The silanols 2a-2c should serve as aglyca for the transformation to the silicon sugars.
- Aisa, A. M. A.,Kraetzer, D.,Richter, H.
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p. 751 - 758
(2007/10/03)
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