One-pot combination of the Wittig olefination with oxidation, hydrogenation, bromination, and photocyclization reactions |
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| Authors: | Khalil Hamza |
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| Affiliation: | Department of Organic Chemistry, The Hebrew University, Jerusalem 91904, Israel |
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| Abstract: | Co-polycondensation of tetramethoxysilane, 2-diphenyl(phosphino)ethyltri(ethoxy)silane, and N-2-(aminoethyl)-3-aminopropyltri(methoxy)silane forms a heterogenized tertiary phosphine reagent (HPR) that reacts with benzyl chlorides and aldehydes to give alkenes. This Wittig condensation can be coupled, as a one-pot process, with hydrogenation, oxidation, bromination or photocyclization. |
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| Keywords: | Catalysis One-pot synthesis Silica sol-gel Wittig reaction |
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