2-[(3E,9E,11Z)-8-Methoxy-3-methyl-13-(tetrahydro-pyran-2-yloxy)-trideca-3,9,11-trienyl]-malonic acid dimethyl ester 在
4-甲基苯磺酸吡啶 作用下,
以
甲醇 为溶剂,
反应 5.5h,
生成
2-((3E,9E,11Z)-13-Hydroxy-8-methoxy-3-methyl-trideca-3,9,11-trienyl)-malonic acid dimethyl ester