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- W2020484163 abstract "α,β-Ungesättigte γ-Hydroxysulfone 2 und β-Brom-γ-hydroxysulfone 4 lassen sich durch Reduktion mit Dimethylaminboran aus entsprechenden Keton-Derivaten erhalten. Die Anlagerung von p-Thiokresol an die Doppelbindung von 2 erfolgt in β-Stellung zur Sulfonylgruppe. In Gegenwart von Basen isomerisiert 2 zu γ-Ketosulfonen 10; mit primären oder sekundären Aminen entstehen Mannichbasen 11. β-Brom-γ-hydroxysulfone 4 werden durch Basen zu 2 gespalten. Unsaturated and Halogenated γ-Hydroxysulfones: Syntheses and Reactivities α,β-Unsaturated γ-hydroxysulfones 2 and β-bromo-γ-hydroxysulfones 4 are prepared from the corresponding keto derivatives by reduction with dimethylaminoborane. Addition of p-toluenethiol to the double bond of 2 takes place in the position β to that of the sulfonyl group. With bases an isomerisation of 2 to γ-ketosulfones 10 is observed. With primary or secondary amines Mannich bases are formed. β-Bromo-γ-hydroxysulfones 4 are cleaved by bases to yield 2." @default.
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- W2020484163 title "Ungesättigte und halogenierte γ-Hydroxysulfone; Darstellung und Reaktivität" @default.
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- W2020484163 doi "https://doi.org/10.1002/ardp.19853181102" @default.
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