(7-methoxy-3,7-dimethyl-2,4-octadien-1-yl)triphenylphosphonium bromide 、
all-E 7,8,11,12-tetrahydro-8'-apo-ψ-caroten-8'-al 在
正丁基锂 作用下,
生成
11',12'-dihydrospheroidene 、 (6E,10E,14E,16E,18E,20E,22E,24Z,26E,28E)-31-Methoxy-2,6,10,14,19,23,27,31-octamethyl-dotriaconta-2,6,10,14,16,18,20,22,24,26,28-undecaene