Effect of metal ions in organic synthesis. Part XV. Reaction of (arylazo) alkenes and copper (II) chloride in dienophiles or acetone. Synthesis of some N-(α- …

O Attanasi, P Battistoni, G Fava

Index: Attanasi, Orazio; Battistoni, Paolo; Fava, Gabriele Canadian Journal of Chemistry, 1983 , vol. 61, p. 2665 - 2668

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Citation Number: 4

Abstract

The reaction of (phenylazo) stilbene and copper (II) chloride wih some dienophiles produced benzaldehyde and N-(α-chlorobenzylidene)-N'-phenylhydrazine, instead of the expected (4+ 2)-cycloaddition products. By reaction of some (arylazo) alkenes and copper (II) chloride in acetone at 0° C, the relative N-(α-chlorobenzylidene)-N'-arylhydrazine derivatives were successfully obtained in high yields.