作者:S. Raghavendra、Krishnaji Tadiparthi、J.S. Yadav
DOI:10.1016/j.carres.2017.02.008
日期:2017.4
products Prelactone-V and Prelactone-B have been accomplished by a novel Chiron approach starting from d-glucose. The synthesis involves isopropylidene acetal formation of d-glucose using Poly(4-vinylpyridine) supported iodine as a catalyst, Tebbe olefination, Grignard reaction, Wittig olefination, selective mono deprotection of acetal using PMA/SiO2, hydrogenation and anti-1,3-diol formation are as
天然产物Prelactone-V和Prelactone-B的总合成已通过从d-葡萄糖开始的新型Chiron方法完成。合成涉及使用聚(4-乙烯基吡啶)负载的碘作为催化剂的D-葡萄糖的异亚丙基缩醛形成,Tebbe烯烃化,Grignard反应,Wittig烯烃化,使用PMA / SiO2进行的乙醛选择性单脱保护,氢化和抗1,3-3二醇的形成是关键步骤。