Aldous, David J.; Dutton, William M.; Steel, Patrick G., Synlett, 1999, # 4, p. 474 - 476
作者:Aldous, David J.、Dutton, William M.、Steel, Patrick G.
DOI:——
日期:——
A General Strategy for the Diastereoselective Synthesis of 2,6-Diaryl-3,7-dioxabicyclo[3.3.0]octane Lignans
作者:David J. Aldous、Anne J. Dalençon、Patrick G. Steel
DOI:10.1021/jo035148q
日期:2003.11.1
A strategy for the stereoselective synthesis of all the possible diastereoisomers of the 2,6-diaryl-3,7-dioxabicyclo-[3.3.0] octane (filrofuran) lignans from a single dihydrofuran precursor is described. The key steps involve a diastereo-controlled templated cationic cyclization followed by stereoselective reduction of the resulting methyl glycoside.
A Short Synthesis of (±)-Epiasarinin
作者:David J. Aldous、Anne J. Dalençon、Patrick G. Steel
DOI:10.1021/ol025569e
日期:2002.4.1
[reaction: see text] Epiasarinin, an endo-endo furofuran, has been synthesized from piperonal via a five-step route with good stereocontrol. The sequence involves Darzens condensation, alkenyl epoxide-dihydrofuran rearrangement, and a Lewis acid mediated cyclization.
The dihydrofuran template approach to furofuran synthesis
作者:David J. Aldous、Andrei S. Batsanov、Dmitrii S. Yufit、Anne J. Dalençon、William M. Dutton、Patrick G. Steel
DOI:10.1039/b604952d
日期:——
template for a Lewis acid promoted cyclisation to provide the 2,6-diaryl-3,7-dioxabicyclo[3.3.0]octane core found in the furofuran series of natural lignans. This strategy is stereodivergent and can be controlled to provide the exo-exo, exo-endo or endo-endo stereochemistries. The approach has been exemplified in syntheses of the sesamyl furofurans (+/-)-epiasarinin and (+/-)-asarinin.