5-Demethylretinal and its 5-2H, 7-2H2 and 5,7-2H2 isotopomers. Synthesis, photochemistry and spectroscopy
作者:M. B. Spijker-Assink、C. Winkel、G. S. Baldwin、J. Lugtenburg
DOI:10.1002/recl.19881070304
日期:——
All-trans-5-demethylretinal and its5-2H, 7-2H and 5,7-2H2isotopomers have been synthesized by means of a new and simple scheme. Using photochemistry, the 9-, 11- and 13-cis, as well as the 9,13- and 11,13-di-cis isomers, were obtained. The structures were established by means of 1H NMR spectroscopy.
SPIJKER-ASSINK, M. B.;WINKEL, C.;BALDWIN, G. S.;LUGTENBURG, J., REC. TRAV. CHIM. PAYS-BAS, 107,(1988) N 3, 125-131
作者:SPIJKER-ASSINK, M. B.、WINKEL, C.、BALDWIN, G. S.、LUGTENBURG, J.
DOI:——
日期:——
US4973354A
申请人:——
公开号:US4973354A
公开(公告)日:1990-11-27
Total Synthesis of (+/−)-Frondosin B and (+/−)-5-<i>epi</i>-Liphagal by Using a Concise (4+3) Cycloaddition Approach
作者:Duchan R. Laplace、Bart Verbraeken、Kristof Van Hecke、Johan M. Winne
DOI:10.1002/chem.201303273
日期:2014.1.3
developed (4+3) cycloaddition between dienes and furfuryl alcohols, as precursors of oxyallyl‐type cations, has been used as a key step in the racemic syntheses of two natural products: frondosin B and liphagal. This work demonstrates the synthetic potential of this cycloaddition reaction, and offers a short synthetic route to an interesting family of natural products. A full account of these synthetic studies