Lithium Hexamethyldisilazide (LHMDS) (CAS 4039-32-1) is a lanthanoid salt/reagent with molecular formula LiN[Si(CH3)3]2. It is supplied as a typical 25% solution in THF. It is commonly used as a strong base for selective deprotonation and related transformations. Selective low nucleophilic base for e.g. enolisations. Many reagents in this class react readily with moisture and oxygen. Handle under…
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Selektive, schwach nukleophile Base, beispielsweise für Enolisierungen.
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Lithium Hexamethyldisilazide (LHMDS) (CAS 4039-32-1) is a lanthanoid salt/reagent with molecular formula LiN[Si(CH3)3]2. It is supplied as a typical 24% solution in THF with 2-Methyl-2-Butene. It is commonly used as a strong base for selective deprotonation and related transformations. Selective low nucleophilic base for e.g. enolisations. Many reagents in this class react readily with moisture…
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Base selectiva con bajo contenido de nucleofilo para, por ejemplo, enolizaciones.
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Szelektív, alacsony nukleofilitású bázis, például enolizáláshoz.
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エノール化などに使用される選択的な低求核性塩基。
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선택적 저친핵성 염기(예: 에놀화).
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选择性低亲核碱，用于烯醇化反应等。
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Lithium diisopropylamide (often abbreviated LDA) is a lithium amide base with CAS 4111-54-0 and molecular formula C₆H₁₄LiN. Chemically, it’s the lithium salt of diisopropylamine (LiN(i-Pr)₂), and it is highly moisture sensitive—it reacts with water and is typically handled and dispensed as a solution under dry, inert conditions rather than as an isolated solid. In organic synthesis, LDA is valued…
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Claisen-Kondensation, Aldol-Kondensation. Alkylierung von Nitrilen, Ketonen, Aminen, Alkinen. Synthese von Ethinyl-Verbindungen und Antihistaminika. Umesterung. Katalysator für die anionische Polymerisation von Acrylnitril und Methacrylnitril.
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