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1,2-Diaza-1,3-Butadienes: A New Approach to the Synthesis of Selenoheterocycles

✍ Scribed by Orazio A. Attanasi; Paolino Filippone; Francesca R. Perrulli; Stefania Santeusanio

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
162 KB
Volume
2002
Category
Article
ISSN
1434-193X

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Controlled Rearrangement of 2,3-Dilithio-1,3-butadienes to 2,5-Dilithio-1,3-butadienes: Synthesis of 2-Isopropylidene-2,5-dihydrosilols
✍ Adalbert Maercker; H. Wunderlich; Ulrich Girreser 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 340 KB

Dilithio-2,5-dimethyl-2,4-hexadiene (4a) rearranges to the cross-conjugated 2,5-dimethylhexadienediyl dianion 11a. A mechanistic investigation proves the intermolecularity of this rearrangement, which is also observed when starting from 4b. The 3-lithio-2,5-dimethylhexadienyl anion 10a with