Asymmetric Synthesis of Hispidanin A and Related Diterpenoids
作者:Wei Cao、Heping Deng、Ying Sun、Bo Liu、Song Qin
DOI:10.1002/chem.201801156
日期:2018.6.26
second generation of synthesis, key elements included an iron‐catalyzed radical cascade to access the labdane‐type diene on the basis of hydrogen atom transfer, and an enantioselective cationic polyene cyclization furnished the totarane‐type dienophile. Reaction optimization and mechanistic analysis of the radical cascade reaction was conducted. Furthermore, the [4+2] cycloaddition reaction was achieved