Benzocyanaldoxim und Abkömmlinge
Published by Johann Ambrosius Barth, Leipzig, 1902
- Softcover
- Used
Seller: Versandantiquariat Funke, Dresden, GermanyVersandantiquariat Funke
AbeBooks seller since April 10, 2023
Condition: Used - Fine
£ 14.86
Quantity: 1 available
Add to basketItem description from seller
sehr guter Zustand, geringe Gebrauchs- und Alterungsspuren Schon frühzeitig hatte man die Bemerkung gemacht, dass die Methylenwasserstoffatome durch die Nachbarschaft zweier sogenannter »negativer Gruppen« besonders reactionsfähig werden. Zu den negativen Gruppen rechnet man die Halogene, die Nitrogruppe, die Acyle, das Carboxyl, die Aldehydgruppe, das Cyan unddas Phenyl. Die atomlockernde Eigenschaft des Phenyls kann wiederum durch die anderen negativen Gruppen gesteigert werden. Durch die ausserordentliche Mannigfaltigkeit der möglichen Variirung hat sich diese Reaction als ein äusserst wichtiger Baustein im Gebäude der synthetischen, organischen Chemie erwiesen. Victor Meyer zeigte so die Ueberführung von Methylenverbindungen in Oxime durch die Einwirkung der salpetrigen Säure. Das erste auf diesem Wege erhaltene Oxim war das Nitroacetaldoxim . Diese Reaction ist im Laufe der Jahre bedeutend ausgebaut worden unter gleichzeitiger Variation der Ausführungsform. Victor Meyer wandte zuerst Nitrit und verdünnte Mineralsäure an, später benutzte er Amylnitrit und Natriumalkoholat. An Stelle des Alkalis kann auch Salzsäure treten, wenn die Natur der reagirenden Stoffe dies als wünschenswerth erscheinen lässt. Welchen Einfluss die Ausführung ein und derselben Methode auf die Ausbeute ausübt, zeigt Ivanchitch in seiner jüngsten Veröffentlichung, welche bei der Abfassung dieser Arbeit nichtin der wünschenswerthen Weise in Betracht gezogen werden konnte . Buchreihe: Separat-Abdruck aus dem Journal für praktische Chemie, Neue Folge, Band 66 Seitenanzahl: 24 Seiten Softcover Deutsch.…
Seller Inventory # 304567
Bibliographic details
- Title
- Benzocyanaldoxim und Abkömmlinge
- Author
- M. R. Zimmermann / Editor: /
- Publisher
- Johann Ambrosius Barth, Leipzig
- Publication year
- 1902
- Condition
- sehr guter Zustand
- Binding
- Soft cover
- Seller catalogs
- Chemie
Versandantiquariat Funke
Dresden, Germany
AbeBooks seller since April 10, 2023
Shipping rates from Germany to U.S.A.
| Item | 25 to 45 business days | 8 to 14 business days |
|---|---|---|
| First item | £ 46.76 | £ 67.34 |
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Store description
Aus Leidenschaft für alte Bücher wurde aus einem Hobby ein kleines, aber feines Versandantiquariat. Über 40.000 handverlesene Bücher und Sammlerstücke wurden in den letzten Jahren bereits verkauft. Das spricht für Qualität. Lassen Sie sich inspirieren und stöbern Sie einfach mal in meinem Sortiment.
Seller's business information
Versandantiquariat Funke
Germany
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