1-[(2,6,6-trimethyl-1-cyclohexen-1-yl)methyl]-2-propynyl pivalate 在
tetrakis(acetonitrile)copper(I)tetrafluoroborate 作用下,
生成 2,2-Dimethyl-propionic acid (3aR,3bR,7aR)-3b,7,7-trimethyl-3a,3b,4,5,6,7-hexahydro-1H-cyclopenta[1,3]cyclopropa[1,2]benzen-3-yl ester