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NMR studies on the interaction of methylaluminium compounds with some methyl-substituted pyridines

✍ Scribed by Kizuku Wakatsuki; Gen-etsu Matsubayashi; Toshio Tanaka

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
335 KB
Volume
5
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The interactions of trimethylaluminium and dimethylaluminium chloride with some methyl‐substituted pyridines have been investigated in dichloromethane by means of temperature‐dependent proton NMR spectra. 4‐Methylpyridine forms 1:1 addition complexes with trimethylaluminium and dimethylaluminium chloride. 2,6‐Dimethyl‐ and 2,4,6‐trimethylpyridines have been found to yield three types of complex with dimethylaluminium chloride, however, and only one type of complex with trimethylaluminium. The configurations of the complexes in solution, and exchange equilibria between methylaluminium compounds and 2,6‐dimethylpyridine are also discussed.

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