On the role of the solvent in type II photoreactions from aliphatic ketones
β Scribed by M.V. Encina; E.A. Lissi
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 644 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0047-2670
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## Abstract Photochemical reactions of theophylline with dialkyl and cyclic ethers in the presence of aliphatic ketones result in substitution of the hydrogen atom at Cβ8 position. The results indicate that both the Ξ±βalkoxyalkyl radicals derived by Hβabstraction from ether and the ketyl radicals g
ESR and optical absorption studies are described for a number of copper(1I) chelates with aliphatic polyamines, exhibiting both square pyramidal and square bipyramidal coordination around the copper ion. The complexes studied were bis(N,N'-dimethylethylenediamine)copper(II) sulphate tetrahydrate, bi