The structure of C9Cl7(COOH).(O2C2H4), a condensed cage pentacyclononane compound, determined by the symbolic addition method

Okaya, Y.

doi:10.1107/s0567740869004870

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1988

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Gekoppelte Polycyclen: Synthese, Struktur und Isomerisierung von 1,1′‐Bihomocuban

1988

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Coupled Polycyles: Synthesis, Structure, and Isomerization of 1,1′‐Bihomocubane 1,1′‐Bihomocubane (1) was obtained in 45% yield from 1‐bromohomocubane by lithium–bromine exchange with tert‐butyllithium, formation of the corresponding lithium cuprate by addition of complex 3, and oxidation of the cuprate with nitrobenzene. 1 was converted into 1,1′‐binorsnoutane (6) by means of silver(I) catalysis. The X‐ray structure of 1 showed a short C1–C1 bond (1.460 Å), in accordance with predictions by Ermer and Lex.

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