O,O-二甲基鹅掌楸树脂醇 A 在
氯仿 、 溴 作用下,
生成 (3aR)-1c,4t-bis-(2-bromo-3,4,5-trimethoxy-phenyl)-(3ar,6ac)-tetrahydro-furo[3,4-c]furan
参考文献:
名称:
Liriodendrin, a New Lignan Diglucoside from the Inner Bark of Yellow Poplar (Liriodendron tulipifera L.)
摘要:
DOI:
10.1021/jo01096a007
作为产物:
描述:
O,O-二甲基鹅掌楸树脂醇B 在
Montmorillonite KSF 作用下,
反应 0.03h,
以46%的产率得到O,O-二甲基鹅掌楸树脂醇 A
参考文献:
名称:
Clay Catalysed Convenient Isomerization of Natural Furofuran Lignans Under Microwave Irradiation
摘要:
The naturally occuring furofuron lignans, (+)-sesamin, (+)- eudesmin, (+)-syringaresinol and (+)-yangambin underwent rapid isomerization to their corresponding C-7 epimers under microwave irradiation in the presence of montmorillonite KSF as catalyst.
Stereospecific synthesis of endo-endo-3,7-dioxabicyclo[3.3.0]octane lignans using 1,6-bis(dipropylboryl)-2,4-hexadiene
作者:A. N. Anfimov、S. Yu. Erdyakov、M. E. Gurskii、Yu. N. Bubnov
DOI:10.1007/s11172-011-0358-6
日期:2011.11
7-dioxabicyclo[3.3.0]octane series was developed. The strategy includes allylboration of aromatic aldehydes with 1,6-bis(dialkylboryl)-2,4-hexadiene, ozonolysis of the thus obtained 1,4-diaryl-2,3-divinyl-1,4-diols, and subsequent intramolecular cyclization. This methodology was used for obtaining the naturally occurring lignans of the furofuran series, viz., diaeudesmin, diayangambin, epiasarinin, epieudesmin