## 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 dimethyl
NMR studies on the interaction of ethyl-aluminium chlorides with some methyl-substituted pyridines
✍ Scribed by Gen-Etsu Matsubayashi; Kizuku Wakatsuki; Toshio Tanaka
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 424 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The interaction of triethylaluminium, diethylaluminium chloride and ethylaluminium dichloride with some methyl-substituted pyridines has been investigated in 1,2-dichloroethane or dichloromethane by means of NMR spectroscopy. 2,6-Dimethyl-and 2,4,6-trimethyl-pyridine have been found to form three types of complexes with diethylaluminium chloride and ethylaluminium dichloride in solution. In addition, the configurations of the complexes in solution have been estimated from proton NMR chemical shifts of the methyl-substituted pyridines and the conductivity measurements.
📜 SIMILAR VOLUMES
## Abstract ^13^C chemical shift assignment of several methyl substituted heterocyclic naphtho‐ and anthraquinones, including dihydronaphthofuranquinones, azaanthraquinones, benzopyrroloquinolinediones and benzothiophenoquinolinediones, are described. A deshielding effect due to a methyl group was