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1,4,7,10-tetramethyl-5,6-didehydrodibenzo[a,e]cyclooctene. A presumably planar fully conjugated eight-membered ring compound.

✍ Scribed by Nai Zheng Huang; Jian Hua Jia; Li Li Wang; Tze-Lock Chan; Thomas C.W. Mak

Publisher: Elsevier Science
Year: 1982
Tongue: French
Weight: 401 KB
Volume: 23
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)85716-0

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✦ Synopsis

Swmary. The first known stable crystaZline derivative of 5,6-didehydrodibenzo[a,e]eycZooctene 111, namely, 1,4,7,lO-tetramethyZ-5,6-didehydrodibenzo[a,e]cycZooctene (21, was prepared and unequivocalZy characterised.

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1,4,7,10-tetramethyl-5,6-didehydrodibenz

1,4,7,10-tetramethyl-5,6-didehydrodibenzo [a,e]cyclooctene

✍ Mei-Kuen Au; Tak-Wai Siu; Thomas C.W. Mak; Tze-Lock Chan 📂 Article 📅 1978 🏛 Elsevier Science 🌐 French ⚖ 176 KB

We report the synthesis and structural characterization of the title compound (z), the first known derivative of the intriguing dibenz-annelated planar conjugated eight-membered ring system'. Unlike its parent compound, hydrocarbon 2 was found to be thermally stable, undergoing no detectable decompo