✦ LIBER ✦

Benzo [3,4]cyclobuta[1,2-b] biphenylene, the linear sesquibiphenylene

✍ Scribed by J.W. Barton; D.J. Rowe

Publisher: Elsevier Science
Year: 1983
Tongue: French
Weight: 178 KB
Volume: 24
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)81390-8

No coin nor oath required. For personal study only.

✦ Synopsis

Syntheses of the benzodicinnolines

(3) and ( 4), and their vacuum thermolysis to give the title compound (l), are reported.

The effects which arise from the fusion of small, strained rings 192 and of potentially

📜 SIMILAR VOLUMES

Benzo[3,4]cyclobuta[1,2-a]biphenylene, a

Benzo[3,4]cyclobuta[1,2-a]biphenylene, a new biphenylene system

✍ J.W. Barton; R.B. Walker 📂 Article 📅 1978 🏛 Elsevier Science 🌐 French ⚖ 168 KB

Current interest in strained systems resulting from the fusion of more than one small, strained ring onto a benzene nucleus has led to the recent synthesis of molecules such as 1,2,5,6-tetrahydrodicyclobuta[a,c]benzene (l).l

Benzo[3,4 cyclobuta[1,2-b cycloheptatrie

Benzo[3,4 cyclobuta[1,2-b cycloheptatriene and benzo[3,4]cyclobuta[1,2]tropylium cation

✍ L. Lombardo; D. Wege 📂 Article 📅 1972 🏛 Elsevier Science 🌐 French ⚖ 165 KB

Recent interest in aromatic analogues of biphenylene in which one benzenoid ring is replaced by five membered 6n electron systemsIs prompts us to report our synthesis of the title triene 5 and the derived tropylium salt 11. -The latter is a derivative of biphenylene in which a benzenoid ring is rep

Benzo[3,4]cyclobuta[1,2-b]thiophene

✍ J.W. Barton; D.J. Lapham 📂 Article 📅 1979 🏛 Elsevier Science 🌐 French ⚖ 119 KB

The synthesis of thieno[3,2-clcinnoline is described; this compound gives benzo [3,4]cyclobuta[1,2-blthiophene. ## vapour phase thermolysis of The considerable stability of biphenylene, a system containing fused 4n and (4n+2) ITelectron rings, is associated with the fact that its structure corres

Biphenylenes—XXIX: Synthesis of cyclobut

Biphenylenes—XXIX: Synthesis of cyclobuta[b]biphenylene-1-carboxylic acid and of cyclopenteno[b]biphenylene-1,2,3-trione

✍ Paul R. Buckland; John F.W. McOmie 📂 Article 📅 1977 🏛 Elsevier Science 🌐 French ⚖ 551 KB

Benzo[3,4]cyclobuta[1,2-d]tropone

✍ Ross K. McCulloch; Dieter Wege 📂 Article 📅 1976 🏛 Elsevier Science 🌐 French ⚖ 182 KB

During recent years, a considerably amount of attention has been devoted to the synthesis of aromatic analogues of biphenylene 1, in which one bensenoid ring is replaced by another (an + 2)x electron system. Compounds which have been prepared include the norbiphenylene anion 2l , benzo[3,4]cyclobuta

Benzo[3,4]cyclobuta[1,2-c]tropone

✍ Luciano Lombardo; Dieter Wege 📂 Article 📅 1975 🏛 Elsevier Science 🌐 French ⚖ 171 KB

Following our synthesis of the benzo[3,4]cyclobutap,2]tropylium cation', we have been actively engaged in investigating routes to the three possible isomeric benzo [3,4]cyclobuta[l,2]troPones 2, 3, and $.