Facile intramolecular cyclization in oxidative coupling of acetylenes linked to 1,3-positions of benzene: Strained [12]metacyclophanedienetetrayne system

Yoshito Tobe, Jun ya Kishi, Ichiro Ohki, Motohiro Sonoda

Research output: Contribution to journalArticle

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Abstract

Oxidative coupling of ethynylpropellane linked to 1,3,5-position of a benzene core 3b did not give the cage dimer 2 but the dimer 4 having a strained [12]metacyclophanedienetetrayne system. The spectral and structural features of the novel ring system were revealed for the simple dibenzo derivative 6, which was also prepared efficiently by the intramolecular cyclization of the open-chain precursor.

Original languageEnglish
Pages (from-to)3330-3332
Number of pages3
JournalJournal of Organic Chemistry
Volume68
Issue number8
DOIs
StatePublished - 18 Apr 2003

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