triphenyl(2,4,6-triisopropylbenzyl)phosphonium bromide 、
Butyl 3,7-dimethyl-8-oxoocta-2,4,6-trienoate 以to form 9-(2,4,6-triisopropyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid butyl ester (oil)的产率得到9-(2,4,6-Triisopropyl-phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-oic acid butyl ester