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Aromatic substitution of olefin. IV Reaction with palladium metal and silver acetate

✍ Scribed by Yuzo Fujiwara; Ichiro Moritani; Masaoki Matsuda; Shiichiro Teranishi


Publisher
Elsevier Science
Year
1968
Tongue
French
Weight
157 KB
Volume
9
Category
Article
ISSN
0040-4039

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✦ Synopsis


In previous papers, 1) we reported a novel substitution reaction between styrene and benzene derivatives in the presense of palladium(I1) salts such as palladium(I1) acetate, giving stilbene derivatives by substitution of aromatic compounds for hydrogen on the double bond of styrene. This is a convenient new method for the introduction of phenyl groups into the olefinic C-atom.

In this reaction, however, an equal amount of palladium(I1) salts to olefin is necessary and the palladium(I1) salt is reduced to metal in the course of this reaction. Therefore it is of interest to investigate whether palladium(I1) salts can act catalytically in this substitution reaction.


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Efficient regeneration of carbonyl compo
✍ Richard N. Butler; Anne M. O'Donohue πŸ“‚ Article πŸ“… 1979 πŸ› Elsevier Science 🌐 French βš– 240 KB

Thallium triacetate in acetic acid gave clean regeneration of both aldehydes and ketones from their toluene-p-sulphonylhydrazones. The reagent gave N-aroyl-N' -acetyl-NV-phenylhydrazines from aromatic aldehyde phenylhydrazones without prior dehydrogenation to nitrilimine intermediates. Considerable