作者:Runpu Shen、Xiaoyue Jiang、Weidong Ye、Xiaohua Song、Luo Liu、Xuejun Lao、Chunlei Wu
DOI:10.1016/j.tet.2011.05.104
日期:2011.8
A novel route for the total synthesis of lycopene 1 is described. The synthesis is based on: (i) a condensation between 4,4-dimethoxy-3-methylbutanal 4 and methylenebisphosphonic acid tetraethyl ester 5, leading to the C6-phosphonate 6, followed by (ii) a modified Wittig–Horner reaction between 6 and 6-methyl-5-hepten-2-one 7 producing dimethoxy-3,5,9-triene 8, and (iii) another modified Wittig–Horner
描述了番茄红素1全合成的新途径。合成基于:(i)4,4-二甲氧基-3-甲基丁醛4与亚甲基双膦酸四乙酯5缩合,生成C6-膦酸酯6,然后(ii)6之间进行改进的Wittig-Horner反应和6-甲基-5-庚二烯-2-酮7生成二甲氧基-3,5,9-三烯8,以及(iii)另一个经过修饰的Wittig-Horner反应,在C15-膦酸酯2和C10-三烯二醛3之间生成全E -番茄红素。合成步骤易于操作并且对于大规模生产是实用的。