6-methylen-bicyclo[3.3.0]octan-2-one durch nickel(0)-katalysierte [3+2]cycloaddition von methylencyclopropanen mit 2-cyclopentenon

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Abstract

6-Methylene-bicyclo[3.3.0]octane-2-ones are obtained in good yields by Ni(0)-catalyzed codimerizations of 2-cyclopentenone with methylenecyclopropanes in the presence of triethylborane as a lewis acid.

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