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Probing the formation of Bicyclo[4.2.0]octan-1-ols

Loughlin, W.A., Rowen, C.C.ORCID: 0000-0003-4490-9542 and Healy, P.C. (2004) Probing the formation of Bicyclo[4.2.0]octan-1-ols. The Journal of Organic Chemistry, 69 (17). pp. 5690-5698.

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Reaction of lithium enolates of simple ketones with (±)-phenyl vinyl sulfoxide has potential for the convergent construction of complex fused ring systems containing a bicyclo[n.2.0]alkan-1-ol. The formation of sulfinylbicyclo[4.2.0]octan-1-ols 1−3 from the lithium enolate of cyclohexanone with (±)-phenyl vinyl sulfoxide or (R)-(+)-p-tolyl vinyl sulfoxide 18 was used to probe the mode of this novel cyclization reaction. Using phenyl vinyl sulfoxide, variations in the reaction lighting and solvent were investigated, in conjunction with radical trapping (TEMPO) and isotope labeling (deuterium) experiments. Cyclization to form sulfinylbicyclooctanols 1−3 is likely to proceed via an intermediate that ring closes to the bicycloalkanol anion 11 and was presently favored by the use of solvents such as THF or DME.

Item Type: Journal Article
Publisher: ACS Publications
Copyright: © 2004 American Chemical Society
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