Sym-benzvaleno-benzo-benzvalene, a double valence isomer of anthracene

Gandillon, Gérard; Bianco, Bernard; Burger, Ulrich

doi:10.1016/0040-4039(81)80038-X

Scientific article

Letter

English

Sym-benzvaleno-benzo-benzvalene, a double valence isomer of anthracene

ContributorsGandillon, Gérard; Bianco, Bernard; Burger, Ulrich

Published inTetrahedron letters, vol. 22, no. 1, p. 51-54

Publication date1981

Abstract

Dilithio-s-indacene (1) on reaction with excess chlorocarbene produces s-benzvaleno-benzo-benzvalene (3). Unlike benzvalene, it does not aromatize on heating but decomposes stepwise to 1,5- and 1,7-bis-methylene-dihydro-indacene (6 and 7).

Affiliation entities

Faculté des sciences / Section de chimie et biochimie / Département de chimie organique

Citation (ISO format)

GANDILLON, Gérard, BIANCO, Bernard, BURGER, Ulrich. Sym-benzvaleno-benzo-benzvalene, a double valence isomer of anthracene. In: Tetrahedron letters, 1981, vol. 22, n° 1, p. 51–54. doi: 10.1016/0040-4039(81)80038-X

Article (Published version)

Identifiers

PID : unige:168777
DOI : 10.1016/0040-4039(81)80038-X

Additional URL for this publicationhttps://linkinghub.elsevier.com/retrieve/pii/004040398180038X

Journal ISSN0040-4039

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Sym-benzvaleno-benzo-benzvalene, a double valence isomer of anthracene

Dilithio-s-indacene (1) on reaction with excess chlorocarbene produces s-benzvaleno-benzo-benzvalene (3). Unlike benzvalene, it does not aromatize on heating but decomposes stepwise to 1,5- and 1,7-bis-methylene-dihydro-indacene (6 and 7).

Technical informations