Total synthesis of (±)-brazilin and formal synthesis of (±)-brazilein, (±)-brazilide A using m-CPBA
作者:Liang-Qun Li、Ming-Ming Li、Kou Wang、Hong-Bo Qin
DOI:10.1016/j.tetlet.2013.08.081
日期:2013.11
Total synthesis of (±)-brazilin has been accomplished. m-CPBA epoxidation of allyl alcohol 10 and epoxy opening reaction mediated by m-chlorobenzoic acid, formed in situ as a byproduct, gave advanced intermediate diol 14. O-alkylation and cyclization gave phenol 6 which enabled the formal synthesis of (±)-brazilein and (±)-brazilide A.
(±)-巴西灵的全合成已完成。米烯丙醇的环氧化-CPBA 10和由介导的环氧开环反应米氯苯甲酸,原位形成作为副产物,得到高级中间体二醇14。O-烷基化和环化产生苯酚6,苯酚6能够正式合成(±)-巴西唑啉和(±)-巴西腈A.