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- W2142593174 abstract "Abstract The title compounds show low reactivity towards electrophiles. Under forced conditions, however, the As[dbnd]C derivative 1a is attacked by methyl iodide and CCl4 to give λ5- and (δ3-dihydro)benzoxarsoles, respectively. Nucleophilic additions take place with “soft” bases while “hard” bases fail to react, thus indicating some aromaticity of the heterocycles. Me3SnH is smoothly added by a radical way. Die Titelverbindungen sind gegenüber Elektrophilen wenig reaktiv. Unter encrgischen Bedingungen setzt sich das As[dbnd]C-Derivat 1a jedoch mit Methyliodid und CCl4 zu δ5- bzw. (δ3-Dihydro)benzoxarsolen um. Nucleophile Additionen gelingen mit “weichen” Basen, während “harte” Basen nicht reagieren. Dies verweist auf gewisse aromatische Stabilisierung der Heterocyclen. Me3SnH wird leicht radikalisch addiert." @default.
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- W2142593174 date "1984-08-01" @default.
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- W2142593174 title "ADDITIONSREAKTIONEN AN As[dbnd]C- UND P[dbnd]C-DOPPELBINDUNGEN DER 1,3-BENZOXARSOLE UND 1,3-BENZOXAPHOSPHOLE" @default.
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- W2142593174 doi "https://doi.org/10.1080/03086648408077644" @default.
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