1.利用分子內[2+2]光環化-斷裂反應合成Fusoxysporone2.ErybraedinsC全合成的研究

• Main Author: 陳尚鴻
• Other Authors: Bor-Cheng Hong
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/25497892741733272651

碩士 === 國立中正大學 === 化學研究所 === 90 === Abstract Part I: Intramolecular [2+2] photocycloaddition - fragmentation:facile entry to the tricyclic 5-6-7 fusoxysporone ring system An expeditionary route to the tricyclic core of fusoxysporone is described. The chemistry capitalized upon both exantioselective glyoxylate-ene reaction and [2+2] photocycloaddition-fragmentation stratagem. Part II: Synthesis of Erybraedins C The titanium-catalyzed reaction of various 2H-chromenes and 2-alkoxy-1,4-benzoquinones stereoselectively yielded [2+3] adduct. Thus, conversion of palladium-catalyzed coupling gave final product.