4-(dimethylamino)-5,6-diphenyl-2-hexyne

3-(dimethylamino)-4,5-diphenyl-1-pentyne

[(E)-3,3-dimethylbut-1-enyl]benzene

(Z)-1-(3,3-dimethylbut-1-enyl)benzene

[1'R-(1'α,2'β,3'β,4'α)]-3',4'-Diphenyldispiro[isobenzofuran-1(3H),1'-cyclobutan-2',1''(3''H)-isobenzofuran]-3,3''-dion