bisalkene noun1 •Any compound, especially a symmetric dimer, containing two alkene groupsAldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich In the case of cavity bisalkene 75, a single isomer was obtained with two equivalents of isobenzofuran 72, each reacting stereospecifically with a cyclobutene-1,2-diester group to produce the symmetrical product 76. formsbisalkenes