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jamesye1978

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Zu einer Lösung von 1g A und 2g B in 20ccm Wasser f¨¹gt man unter r¨¹hren langsam 3ccm Brom bei Raumtemp und läßt noch 15min weiterr¨¹hren. Danach wird angesäuert, der Niederschlag abgesaugt und nach Einengen des Filtrats i. Vak . zu trockne weitere substanz durch Extraktion mit Äther oder aceton gewonnen. Ausb 3g.

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