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- W2023013658 abstract "Die salzfreien Trialkyl-alkylidenphosphorane R2R'documentclass{article}pagestyle{empty}begin{document}$ mathop Plimits^ oplus - mathop Climits^ odot $end{document}R”R‴ 2a-2o (R, R' = Alkyl; R” = H, Alkyl; R‴= H, Alkyl, 2-Propenyl) sowie zwei Triphenyl-alkylidenphosphorane 2p und 2q (R, R'= Phenyl; R”=H; R‴= H, 2-Propenyl) werden aus den Phosphoniumchloriden bzw. -bromiden [R2R'PCHR”︁R‴]⊕X⊖ 1a-1q mit Natriumamid in siedendem Tetrahydrofuran dargestellt. Reinheit und Struktur der Phosphorane 2 werden durch Elementaranalyse, Massenspektren sowie durch 1H- und 31P-NMR-Spektren bestimmt. Preparation of Salt-free Trialkyl-alkylidenephosphoranes The salt-free trialkyl-alkylidenephosphoranes R2Rdocumentclass{article}pagestyle{empty}begin{document}$ mathop Plimits^ oplus - mathop Climits^ odot $end{document}R”︁‴ 2a-2o (R, R' = alkyl; R”= H, alkyl; R‴= H, alkyl, 2-propenyl) as well as two triphenyl-alkylidenephosphoranes 2p and 2q (R, R'= phenyl; R”= H; R‴= H, 2-propenyl) are prepared by treating the corresponding phosphonium chlorides or bromides [R2R'PCHR”R‴]⊕X⊖ 1a-1q with sodamide in boiling tetrahydrofuran. Structure and purity of the compounds 2 are determined by elementary analyses, mass spectra, and 1H- and 31P-NMR spectra." @default.
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- W2023013658 date "1970-09-30" @default.
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- W2023013658 title "Zur Darstellung salzfreier Trialkyl-alkylidenphosphorane" @default.
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- W2023013658 doi "https://doi.org/10.1002/jlac.19707390127" @default.
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