**Nickel‐catalysed Reaction of 2‐Aza‐1, 3‐butadienes with 1, 3‐Butadiene** The nickel‐catalysed reaction of butadiene with 2‐azabutadienes yields a mixture of 1 aza‐1,5,9‐cyclododecatrienes, __N__‐alkylidene‐divinylcyclohexylamines and open chained 2:1 adducts.
Zur Kenntnis der nickel-katalysierten Mischoligomerisation von Butadien mit Hydrazonen. Vorläufige Mitteilung
✍ Scribed by Hans-Ulrich Blaser; Dieter Reinehr
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- German
- Weight
- 168 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Studies on the nickel‐catalysed reaction of butadiene with hydrazones
The nickel‐catalysed reaction of butadiene with methyl‐hydrazones yields a series of isomeric azo‐compounds identified as 2:1 adducts. The products are compared with those of the analogous reaction of butadiene with imines (cf. Scheme 1–3).
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6-Methoxy-7,8,9,1O-tetrahydropterin (V) ; A, , , = 281 mp (0,l N HCl). Papierchromatographische Untersuchungen und die Absorptionsspektren im UV.-Gebiet ergaben, dass samtliche oben erwahnten Verbindungen gegenuber Luftsauerstoff sehr empfindlich sind. Unterhalb pH 7 erhalt man aus den hydrierten P