Reindarstellung von Methylpyridinen über ihreN-Oxyde

6533b82ffe1ef96bd129644a

RESEARCH PRODUCT

Reindarstellung von Methylpyridinen über ihreN-Oxyde

subject

Chemistry Organic Chemistry Physical and Theoretical Chemistry Medicinal chemistry

description

Die Trennung der bei 143–145° siedenden „β-Picolin-Fraktion”, die aus 3- und 4-Methylpyridin sowie aus 2.6-Dimethlpyridin besteht, ist nach Uberfuhrung in die N-Oxyde durch Destillation moglich. — 3- und 4-Methylpyridin-N-oxyd lassen sich mit RANEY-Nickel in Eisessig/Acetanhydrid hydrieren, 2.6-Dimethylpyridin-N-oxyd bleibt unter diesen Bedingungen unverandert. Zur Aufklarung dieses Befundes wird die Hydrierung weiterer Pyridin-N-oxyde herangezogen. Bestimmte, in einem Kompensationsverfahren gemessene IR-Banden erlauben Aussagen uber den Grad der Verunreinigung von Pyridinbasen.

year	journal	country	edition	language
1958-05-28	Justus Liebigs Annalen der Chemie

https://doi.org/10.1002/jlac.19586130116

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