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Fluxional isomerism in the bicyclo[4.2.2]deca-2,4,7,9-tetraene series

✍ Scribed by J. Altman; E. Babad; M.B. Rubin; D. Ginsburg

Book ID: 104248616
Publisher: Elsevier Science
Year: 1969
Tongue: French
Weight: 181 KB
Volume: 10
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)97756-1

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✦ Synopsis

A flurry of activity in this field has recently produced proof that fluxional isomerism exists in bicyclo[4.2.2]dec.a-2,4,7,9_tetraene ("prebullvalene") and its derivatives.

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We have irradiated a number of [4.4.3]propella-2,4,7,9-tetraene derivatives and have reported the isolation of the primary photo products in two of these. These were thermally isomerized tr the corresponding "prebullvalene" derivatives 5 but our more recent results require that we correct two structures previously formulated' as 3c and &, to 4c and s, respectively.

--This arose from faulty interpretation of spectroscopic data, partly due to the use of a 60 Liz instrument. The 100 MHz spectra of the compounds concerned leave no doubt

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