2-N sodium methylate 、 5-(3-oxo-2,5,5-trimethyl-cyclopent-1-en-1-yl)-5-phenylsulfonyl-3-methyl-pent-2-ene-1-triphenylphosphonium bromide 、
(E)-3-甲酰基丁-2-烯基乙酸酯 、
5-(3-oxo-2,5,5-trimethyl-cyclopent-1-en-1-yl)-5-phenylsulfonyl-3-methyl-pent-2-en-1-ol 生成
all-trans 9-(3-oxo-2,5,5-trimethyl-cyclopent-1-en-1-yl)3,7-dimethyl-nona-2,4,6,8-tetraen-1-ol