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    <title>P(III)/P(V) redox cycling catalysis</title>
    <subTitle>advances in catalytic Wittig and Appel reactions</subTitle>
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    <dateIssued>14.04.2024</dateIssued>
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  <abstract type="Summary">P(III)/P(V) redox cycling catalysis avoids phosphine oxide waste in reactions by reducing it in situ using silanes as terminal reductants. New methods were developed. In a catalytic base-free Wittig (BFW) reaction highly substituted alkenes were formed using environmentally friendly PMHS. An intermediate of the BFW was scavenged with acyl chlorides. Activated alkenes could thus be converted to furans with an unusual substitution pattern. Alcohols and epoxides were converted stereospecifically in a catalytic Appel chlorination under low catalyst loading using small amounts of hexachloroacetone.&lt;eng&gt;</abstract>
  <abstract type="Summary">P(III)/P(V)-Redoxkatalyse umgeht die Bildung von Phosphanoxidabfall durch deren Reduktion in situ unter Verwendung von Silanen als Reduktionsmittel. In einer katalytischen basenfreien Wittig-Reaktion (BFW) unter Verwendung von umweltfreundlichem PMHS wurden hochsubstituierte Alkene gebildet. Mit Säurechloriden wurde ein Intermediat der BFW abgefangen. Hierdurch wurden aktivierte Alkene zu Furanen mit unüblichem Substitutionsmuster umgesetzt. Alkohole und Epoxide reagierten stereospezifisch in einer katalytischen Appel-Chlorierung bei geringer Katalysatorladung und wenig Hexachloraceton.&lt;ger&gt;</abstract>
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  <note type="statement of responsibility">vorgelegt von Jan Günther Tönjes</note>
  <note>Enthält Zeitschriftenartikel</note>
  <note>GutachterInnen: Thomas Werner (Leibniz-Institut für Katalyse e.V.) ; Matthias Bauer (Universität Paderborn) ; Christian Müller (Freie Universität Berlin)</note>
  <note type="thesis">Dissertation Universität Rostock 2024 Kumulative Dissertation</note>
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      <title>P(III)/P(V) redox cycling catalysis</title>
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      <namePart>Tönjes, Jan Günther, 1991 - </namePart>
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