9-trans-3-hydroxy-7,8-didehydro-12'-apo-β-caroten-12'-al 、
5-(2',2',6'-trimethylclohex-5'-enyl)-3-methylpenta-2,4-dien-1-yltriphenylphosphonium bromide 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 20.0h,
以30 <unit not given>的产率得到3,5,5-Trimethyl-4-[3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohex-2-en-1-yl)octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol