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36 g  (0.15 Mol)  III   werden zusammen   mit    40g   (0.2 Mol)  Bromacetaldehyd-diathylacetal in  250 ccm absol. benzolischer
Natriumlthylat-Suspension(bereitet  aus   14 g  (0.6 Moll   Natrium)    21/2£¨1/2Ϊϱ꣩ Stdn. unter    RuckfluB erhitzt. Beim Zusammengeben der Reaktionspartner wird die UIsung tiefblau;  im Ver laufe des Erhitzens verblaBt sie unter Abscheidung von Natriumbromid  bis zu Hellrot. Nach
Aufarbeiten    analog    der Darstellung    von   VI und   Umkristallisieren    aus  Benzol/Essigester  erhalt man 32 g Xin farblosen Kristallen. Ausb. 60% d. Th., Schmp. 13I -132".
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2Â¥: Originally posted by Ñ©±ù¾§¾§ at 2014-05-15 19:19:22
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